Paying attention to a few points can effectively prevent your card from being frozen due to receiving black money:
(1) For OTC transactions, try to choose large platforms such as Binance and EURUSD. These platforms have good communication channels and risk control measures with mainland regulatory agencies and law enforcement agencies.
(2) Try to choose an OTC platform that supports T+1/T+2 withdrawal strategies. Although you cannot withdraw cash immediately after selling coins, it reduces the risk of money laundering through OTC transactions. For example, Binance T+1 and Huobi Strict Selection Trading (compared to free trading, T+2 withdrawal).
(3) Avoid directly using stablecoins such as USDT for OTC transactions. Instead, try to use mainstream currencies such as BTC and ETH for OTC transactions.