What to do when a swap fails and the refund arrives as a token you do not recognize

05 September 2026

Do not interact with the token. Do not try to sell, swap, or transfer it. The safest move is to leave it untouched in your wallet and investigate what it actually is.

A refund that arrives as an unfamiliar token is almost always a sign that something went wrong during the swap - but the specific failure mode matters. The token could be a legitimate refund from the exchange, a dusting attack, a phishing token, or a scam contract designed to drain your wallet the moment you approve it.

How to identify the token without touching it

Open a block explorer for the network where the token appeared. Paste your wallet address and find the transaction that sent the token. Look at the contract address of the token - not the name or symbol shown in your wallet, because those can be faked. Copy the contract address and search it on a reputable token tracker like Etherscan, BscScan, or the equivalent for your chain.

Check the token's age, creator, and transaction history. A legitimate refund token will usually have a clear link to the exchange you used. The exchange may have a standard refund contract that issues a specific token. If the contract was created minutes before the refund arrived, and the token has no meaningful holders or trades, treat it as suspicious.

What a legitimate refund looks like

Some exchanges issue refunds as a wrapped version of the asset you sent, or as a stablecoin pegged to its value. The token name and symbol will match something recognizable. The contract address will appear on the exchange's official documentation or support pages. If the refund amount matches what you sent minus network fees, the token is probably real.

Even then, do not rush to swap it. The exchange may have sent the refund to the wrong address, or the refund may be a different token on a different network. Verify the transaction details on the block explorer against the swap you initiated. If the refund transaction hash does not appear in your swap history on the exchange site, contact support with the transaction hash and the contract address.

What a scam refund looks like

Scammers monitor failed swaps and send tokens to the affected wallet addresses. The token name might mimic a well-known project, or the wallet interface might show a large dollar value to tempt you. The real danger is the hidden function: if you try to swap or sell the token, you may be asked to approve a contract that drains your wallet's entire balance.

Never click a link in the token's description field. Never visit a website that the token's metadata suggests. Never connect your wallet to any site that claims to help you "claim" or "convert" the token.

The one exception worth considering

If you have verified that the token is a legitimate refund from the exchange you used, and you are certain the contract address is safe, you can swap it back to the asset you originally wanted. Use the exchange's own refund mechanism if one exists, not a third-party swap. If you are unsure, leave the token in your wallet and ask support for instructions.

What to do next

After you have identified the token and decided not to touch it, the practical step is to block that token address in your wallet if your wallet supports that feature. This prevents accidental interaction later.

Then return to the hub page Swapping crypto safely and review the steps you missed. Most failed swaps that produce strange refunds can be prevented by testing the deposit address with a tiny amount first, and by checking whether the exchange uses a smart contract or a custodial wallet. Those checks are covered in detail on the sibling pages. Read them before your next swap.

The unfamiliar token sitting in your wallet is a warning. Treat it as one.

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