Public Offer (Terms of Service)
Last updated: 19 June 2026 · Version 1.0
VND Exchange ("the Operator", "we", "us") is a private currency- and digital-asset exchange service. We have no separate legal entity and operate under our own name. The only contact channel for the Operator is the Telegram bot and mini-app @VNDExchangeRobot; support is reached from inside it. We publish no support handle, e-mail address, or postal desk, and we hold no registration number or licence.
This document is a public offer addressed to any person who meets the eligibility requirements below. It is not an advertisement and not an invitation to negotiate individual terms; it sets the terms on which the Operator is prepared to deal, and those terms apply as written.
Not a bank, not regulated, not advice. The Operator is not a bank and not a credit, payment, or electronic-money institution. Nor is it a broker, a licensed foreign-exchange agent, or a licensed crypto exchange. No authority licenses, authorises, or supervises it, and that includes the State Bank of Vietnam. Nothing on the website, in the bot, or in the mini-app, and nothing said by anyone acting for the Operator, is investment, legal, accounting, or tax advice. You act on your own judgement and at your own risk.
Scope. These Terms govern your use of the Operator's website, the Telegram bot, and the Telegram mini-app (together, "the Service"), and every exchange operation carried out through them. By using any part of the Service you accept these Terms.
This Offer is read together with the Operator's other documents, each of which forms part of the contract between you and the Operator to the extent it applies: the Privacy Policy (/legal/privacy), the Consent to Processing of Personal Data (/legal/consent), the AML / KYC Policy (/legal/aml-kyc), the Risk Disclosure (/legal/risk), the Refund / Cancellation Policy (/legal/refund), and the Cookie Policy (/legal/cookies).
1. Definitions
In these Terms:
1.1. Operator — VND Exchange, the private service described above, acting as principal in every operation.
1.2. Client ("you") — the natural person who uses the Service and on whose own behalf an Order is placed. The Client is always the individual sending and receiving the funds, not any agent, nominee, or third party.
1.3. Service — the Operator's website, the Telegram bot, and the Telegram mini-app, taken together.
1.4. Order — a single exchange request created and confirmed by the Client in the bot, identifying the asset given, the asset to be received, the amount, and the delivery or settlement details.
1.5. Rate — the exchange ratio between the two assets in an Order. Rates shown on the website, the calculator, and the mini-app are indicative. The Rate that binds the parties is the one fixed at confirmation of the Order in the bot, as set out in section 5.
1.6. Digital Asset — a crypto-asset, including USDT, treated throughout as property. A Digital Asset is not money, not legal tender, and not a means of payment. The Operator does not accept Digital Assets as payment and does not sell goods or services for them; it buys and sells them as property in an exchange operation.
1.7. Funds — the value on either side of an Order, whether a Digital Asset or fiat currency (VND, USD, RUB, KZT). References to "your Funds" mean Funds you own outright and from a lawful source.
1.8. Confirmation — the point at which the Client confirms an Order in the bot. References to an Order becoming "binding" mean the moment described in section 4.
2. Acceptance of the Offer
2.1. You accept this Offer by creating and confirming an Order in the bot. Confirmation of an Order is your acceptance of these Terms in full and your agreement to the Rate fixed at that moment.
2.2. Browsing the website, or opening the bot or mini-app, is acceptance of the parts of these Terms that govern your use of the Service (sections 1, 11, 13, 14, 15, and 16 in particular), even where you place no Order.
2.3. You cannot accept this Offer in part or subject to conditions. If any term is unacceptable to you, do not place an Order.
2.4. Before you can confirm an Order, the bot requires you to acknowledge that you have read and accept this Offer, the Risk Disclosure (/legal/risk), and the Privacy Policy (/legal/privacy). The Operator records that acknowledgement, with a timestamp and the document version, as evidence of acceptance.
3. Subject and service model
3.1. The Operator buys and sells Digital Assets and fiat currency for one-off exchange operations at the Client's request.
3.2. The Operator acts as principal. In every Order the Operator deals on its own account as the Client's counterparty: it buys from the Client what the Client gives, and it sells to the Client what the Client receives. The Operator is not the Client's agent, broker, fiduciary, adviser, trustee, or custodian, and owes no duty of best execution and no advisory duty. It does not hold Funds for the Client beyond what a given Order requires to be processed.
3.3. Each Order is a separate, self-contained transaction. The Operator gives no undertaking to deal again, to deal at any particular Rate in future, or to keep any line open.
3.4. The Operator provides no wallet, account balance, deposit, interest, lending, staking, or custody service. There is nothing to "store" with the Operator.
4. Order lifecycle and when a deal becomes binding
4.1. The usual flow of an Order is: the Client selects the assets and amount; the bot returns a quote; the Client confirms; the Operator (or its automated systems) accepts; the Client sends the inbound Funds to the requisites the bot supplies; the Operator verifies receipt and, where required, identity; and the Operator sends the outbound Funds or arranges delivery.
4.2. An Order becomes binding when the Client confirms it in the bot and the Operator's system accepts that confirmation. At that moment the Rate is fixed for that Order under section 5. A quote shown before Confirmation is an invitation only and binds no one.
4.3. After an Order is binding the Client must send the exact inbound Funds, from the exact requisite stated in the Order, within the time the bot shows. If the Client sends late, sends a different amount, or sends from a different requisite, the Operator may re-quote, hold the Funds, return them under the Refund / Cancellation Policy (/legal/refund), or apply the holdbacks described there.
4.4. The Operator may decline to accept a Confirmation, or may cancel an accepted Order before sending the outbound Funds, in the circumstances set out in section 10. Where it does so, any Funds already received are returned under the Refund / Cancellation Policy (/legal/refund).
4.5. A binding Order does not oblige the Operator to complete the exchange if the inbound Funds fail the checks in section 8, if the requisite does not match, or if any other ground in section 10 applies. The Operator's obligation to send the outbound Funds arises only once the inbound Funds are received, cleared, and (where required) verified.
5. Indicative rate and binding rate
5.1. Every Rate shown on the website, in the calculator, and in the mini-app before Confirmation is indicative. It is a current estimate, not an offer to deal at that figure. It may move, expire, or be re-quoted at any time before you confirm.
5.2. The binding Rate is the one fixed when you confirm the Order in the bot. The Operator does not lock, reserve, or guarantee any Rate before Confirmation.
5.3. A Rate fixed at Confirmation can lapse if you do not send the inbound Funds in time, or if you change the Order's terms. The Operator may then re-quote at the Rate current when it actually receives and processes the Funds.
5.4. The market for Digital Assets and currency moves continuously. The Operator carries no obligation to match any rate shown elsewhere, any earlier quote, or any rate the Client expected.
6. Limits, fees, network fees, and the courier delivery surcharge
6.1. Each pair has a minimum and, in some cases, a maximum amount per Order, shown in the bot. The Operator may set, change, or apply limits to a particular Client or Order at its discretion.
6.2. The Operator's charge is built into the Rate as a spread between buy and sell. The bot shows you the amount you will receive before you confirm, so the spread is reflected in that figure.
6.3. Network fees. Sending a Digital Asset costs a blockchain network fee, and sending fiat may cost a bank or card-rail fee. Those costs are borne by the Client and are deducted from, or charged in addition to, the relevant side of the Order as the bot indicates. The Operator does not profit from network fees and does not control them.
6.4. Courier delivery surcharge. Where the Client receives VND as cash delivered by courier, a delivery surcharge applies to small orders. The surcharge is a flat fee, waived once the order value reaches the free-delivery threshold for that currency. The exact surcharge and threshold are configured by the Operator and shown in the mini-app at the point of order, inside the "you receive" amount, where the gross figure, the surcharge, and the net figure are all displayed before you confirm.
6.5. The website calculator does not show the courier surcharge. The calculator is a rate preview for the exchange itself and deliberately omits delivery costs, which depend on the amount, the destination, and the settlement method you choose. The surcharge is disclosed in full in the mini-app before you confirm an Order, so it is not a hidden charge. By confirming an Order with cash-by-courier delivery you accept the surcharge shown there.
7. Settlement and delivery
7.1. Settlement methods are: cash in VND banknotes delivered by courier; and bank or card transfer. The available methods depend on the pair, the amount, and the Client's location, and are shown in the bot.
7.2. For cash delivery, the Client must be present, count the banknotes, and check the amount and denominations at hand-over. Risk in cash passes to the Client on hand-over and acceptance. Once the Client has taken the cash, the count is treated as agreed and the Operator's delivery obligation is discharged. Raise any shortfall or dispute with the courier at hand-over, before accepting the cash.
7.3. For a transfer, the Operator's obligation is discharged when it sends the Funds to the requisite stated in the Order. Once sent, settlement is in the hands of the relevant bank, card rail, or blockchain network, which the Operator does not control. Crediting times depend on those systems.
7.4. For a Digital Asset, the Operator's obligation is discharged when it broadcasts the transaction to the correct address and network the Client supplied. A transaction sent to the address and network the Client gave is final and cannot be recalled. The Client is solely responsible for the accuracy of every address, network, memo, tag, and bank detail it provides; an error in any of them can cause permanent, unrecoverable loss, and the Operator has no obligation to recover or replace such Funds. See the Risk Disclosure (/legal/risk).
7.5. The Operator delivers only to the Client's own verified requisites or to the courier hand-over arranged with the Client. It does not send Funds to a third party.
8. Identity verification and AML
8.1. The Operator screens inbound Digital Assets and may require identity verification before completing an Order. This is the Operator's own fraud-prevention measure, applied on a risk basis. It does not make the Operator a regulated institution and is not carried out on behalf of any authority.
8.2. As an internal, risk-based limit, full identity verification is required where a single operation reaches the equivalent of USD 5,000 or more. The Operator may also require verification at any amount where a risk trigger applies. The Operator does not offer, and does not market, anonymous or "no-KYC" exchange.
8.3. Inbound Digital Assets are screened with a third-party blockchain-analytics provider. An inbound transaction fails screening where its cleanliness score is below 80%, or where it is linked to sanctions, scams, darknet activity, or mixing or tumbling services.
8.4. If an inbound Digital Asset fails screening, the Operator returns it to the originating source after the Client's identity is confirmed, at the original amount received, less network costs and a 50% holdback. If the Client pays from a requisite other than the one stated in the Order, a 30% penalty applies and the remainder is returned. These rules, the return mechanics, and the meaning of "original amount" are set out in the Refund / Cancellation Policy (/legal/refund) and the AML / KYC Policy (/legal/aml-kyc).
8.5. The full requirements, triggers, documents, and handling are in the AML / KYC Policy (/legal/aml-kyc), which forms part of these Terms.
9. Client warranties
By placing an Order, the Client warrants, at the time of the Order and for its duration, that:
9.1. the Client is at least 18 years old and has full capacity to enter into this contract;
9.2. the Client acts for itself, in its own name, and not for or on behalf of any undisclosed third party;
9.3. the Funds the Client gives are owned by the Client and come from a lawful source;
9.4. the Client is not a sanctioned or listed person and is not acting for one;
9.5. the Client's use of the Service is lawful in every jurisdiction that applies to the Client, and the Client is responsible for determining that;
9.6. every address, network, tag, requisite, and personal detail the Client provides is accurate and the Client's own;
9.7. the Client will use a single account and will not open or operate more than one; and
9.8. the inbound and outbound requisites belong to the Client, so that sender and recipient match.
A breach of any warranty entitles the Operator to act under section 10 and to apply the holdbacks in the Refund / Cancellation Policy (/legal/refund).
10. The Operator's right to refuse, suspend, delay, freeze, or cancel
10.1. The Operator may, at its sole discretion and without prior notice, refuse an Order, suspend or delay processing, hold or freeze inbound Funds, request documents before releasing anything, or cancel an Order before it has sent the outbound Funds. It may exercise any of these rights where, for example: an inbound Digital Asset fails or is pending screening; identity verification is required and not completed; a requisite does not match; a warranty in section 9 appears to be untrue; an amount or pattern looks like structuring or splitting; the Operator suspects fraud, error, or prohibited use under section 14; or a Rate has lapsed.
10.2. Exercising a right under this section is not a breach by the Operator and gives rise to no liability to the Client. The Operator is not obliged to give reasons.
10.3. Where the Operator holds, freezes, or cancels in connection with an Order, any Funds it returns are returned under the Refund / Cancellation Policy (/legal/refund): to the originating source only, after identity confirmation, at the original amount received, less network and bank costs and any applicable holdback, and never recalculated at the current Rate.
10.4. The rights in this section are the Operator's own commercial and risk-management rights. They are exercised on the Operator's own initiative and for its own protection.
11. Limitation of liability and force majeure
11.1. The Service is provided "as is" and "as available". The Operator does not warrant that the Service will be uninterrupted, error-free, or available at any particular time, and gives no warranty beyond those that cannot lawfully be excluded.
11.2. To the maximum extent permitted by applicable law, the Operator is not liable for any indirect, incidental, special, or consequential loss, for loss of profit or anticipated savings, for loss caused by movements in the market or in any Rate, or for loss caused by the act, omission, delay, or failure of any third party, including any bank, card rail, payment processor, courier, blockchain network, wallet provider, or Telegram.
11.3. To the maximum extent permitted by applicable law, the Operator's total liability arising out of or in connection with any Order is capped at the fee or spread the Operator earned on that disputed Order. Liability that cannot lawfully be limited is not affected by this section.
11.4. Force majeure. The Operator is not liable for any failure or delay caused by events beyond its reasonable control. These include changes in law or policy, central-bank measures, sanctions, and asset freezes; the outage, suspension, or malfunction of any bank or card rail; the outage or restriction of Telegram; and blockchain congestion, fee spikes, forks, or chain reorganisations. While such an event continues, the Operator's affected obligations are suspended.
11.5. Partner services. Any tour, transfer, or scooter or bike rental offered or linked through the Service is an independent third-party service supplied under that third party's own terms. The Operator acts only as a storefront or facilitator for those services, does not operate them, and, to the maximum extent permitted by applicable law, disclaims all liability for them, including for their availability, quality, safety, and performance. Your contract for a partner service is with that provider.
12. Risk acknowledgement
12.1. Exchanging Digital Assets and currency carries risk, including high volatility between quote and settlement, the irreversibility of crypto and cash transfers, network and address-error risk, and the risk of losing part or all of the value involved. The Operator is not a bank, there is no deposit insurance, and there is no investor-protection scheme.
12.2. The full Risk Disclosure is at /legal/risk. Before you can confirm an Order the bot requires you to acknowledge that you have read and accept it. By confirming an Order you confirm that acknowledgement.
13. Personal data
13.1. The Operator processes personal data to provide the Service, to run its own fraud-prevention and AML checks, and for the other purposes set out in the Privacy Policy (/legal/privacy).
13.2. Where the Service requires your consent to process personal data, in particular at identity verification, that consent is given separately through the Consent to Processing of Personal Data (/legal/consent).
13.3. The Operator keeps identity records and transaction records for up to three years after your last operation, and other personal data only for as long as it is needed. The detail is in the Privacy Policy.
13.4. The Privacy Policy and the Consent instrument govern how the Operator handles personal data and form part of these Terms.
14. Prohibited use and prohibited persons
14.1. You must not use the Service to launder money or finance terrorism, to commit or further fraud, to deal in proceeds of crime, to move funds connected with darknet markets or other illicit activity, to evade sanctions, or to send Funds through or to mixers, tumblers, or similar anonymising services.
14.2. The Service may not be used by, or for the benefit of: a person under 18; a sanctioned or listed person, or anyone acting for one; a person in or resident in a jurisdiction where the Service or the relevant exchange would be unlawful; or any undisclosed third party. The Service is not directed to any jurisdiction where offering or using it would be unlawful.
14.3. You must not structure or split a transaction to stay under a limit or to avoid verification; provide false, borrowed, or stolen identity details, requisites, or addresses; or use Funds you do not own or whose source is unlawful.
14.4. You must not abuse the bot or any interface, including by automating access without permission, probing or interfering with the Service, scraping it, or attempting to disrupt or gain unauthorised access to it.
14.5. You must use a single account, deal only with your own Funds, and ensure that the sender and the recipient of every Order are you. The Operator does not process Orders where these conditions are not met.
14.6. Breach of this section entitles the Operator to act under section 10, to apply the holdbacks in the Refund / Cancellation Policy (/legal/refund), and to refuse you further use of the Service.
15. Term and amendment
15.1. This Offer takes effect when you first use the Service and continues for as long as you use it. A completed Order remains governed by the version of these Terms in force when the Order became binding.
15.2. The Operator may amend this Offer at any time by posting the revised version on the website, with an updated "Last updated" date and version number. Posting the revised version is notice of the change. Your continued use of the Service after a change takes effect is your acceptance of the amended Terms.
15.3. If you do not accept an amendment, stop using the Service. Amendments do not apply retroactively to an Order that was already binding before the amendment took effect.
16. Disputes
16.1. If a dispute arises, you must first raise it with the Operator through support in the bot (@VNDExchangeRobot) and the parties must try in good faith to resolve it.
16.2. Raising the matter through support and allowing the Operator a reasonable time to respond and to investigate is a mandatory pre-claim step. You may not bring any further claim until you have completed it.
16.3. The parties will give each other the information reasonably needed to understand and settle the dispute, including the Order reference, the requisites used, and the relevant transaction records.
17. Operator details and contact
17.1. The Operator is VND Exchange, a private exchange service with no separate legal entity.
17.2. The only contact channel for the Operator, including for support, verification, returns, and disputes, is the Telegram bot and mini-app @VNDExchangeRobot. The Operator does not maintain a separate support handle, e-mail address, or telephone line, and will not ask you to move the conversation off the bot.