In most cases, it is a scam
Requests to pay for a so-called key, unlock fee, or release commission to make USDT spendable are typically fraudulent.
What to verify on-chain
- Confirm that an incoming transaction (TXID) actually exists for your address.
- Check whether the token is genuine USDT on the correct contract or just a fake token.
- Make sure you have enough network gas or fees (TRX, ETH, or BNB) to move legitimate funds.
What to do
- Do not pay anything to unknown senders or websites.
- Verify the token contract and transaction history on a trusted blockchain explorer.
- If it is a spam or fake token, ignore it and do not interact with it.