Card blocked over crypto: why it happens and what to do
Why Kazakh banks block cards over crypto operations, which transfers look suspicious, how to get a block lifted and how to trade USDT without the risk.
Why banks block cards
Kazakh banks are required to detect suspicious operations under anti-money-laundering law. With crypto this usually means:
- many incoming transfers from different individuals in a short time;
- a transfer from someone who later reported fraud;
- transit operations: money comes in and immediately goes out;
- large amounts that do not match the card's usual turnover.
A typical scenario
You sell USDT on P2P. The buyer is a scammer who has a victim send you tenge. The victim goes to the bank, and your card is blocked as the recipient of stolen money. The scheme is covered in the lesson on P2P scams.
What to do if your card is blocked
- Call the bank and ask for the reason.
- Gather evidence: the deal history on the platform, chats, the USDT transaction hash.
- Explain the origin of the funds in writing if the bank asks.
- If you were defrauded, file a police report.
How to avoid a block
- Buy and sell through licensed exchangers: the money comes from a company.
- Use a card in your name and never accept payments from third parties.
- Do not turn your personal card into a transit account for other people's money.
- Keep receipts and statements: both the bank and the tax office may need them.
Compare where to sell USDT on the sell USDT page.
FAQ
Why did my bank block my card after selling USDT?
Most likely the money came from a person whose account received a fraud complaint, or there were many transfers from different people. By law the bank suspends suspicious operations pending review.
How do I get a card block lifted?
Contact the bank, explain the origin of the funds and provide evidence: deal history, screenshots, statements. If the money turns out to be stolen, the bank may return it to the sender.
Can I sell USDT without the risk of a block?
The lowest risk comes from deals through an NBK-registry exchanger: the money arrives from a legal entity with a clear payment reference into your own account.
Updated October 6, 2026