If you choose an irregular platform or deposit and withdraw money frequently, and find that the source of funds is abnormal in China, the bank card funds may be frozen. There is no solution to this problem. Without funds, we can only wait for thawing or prepare a bank card. Once it is frozen, it will not affect our life, and we can change the card. Don't use one card frequently to operate frequently. In many cases this year, even if transactions are not made, as long as deposits and withdrawals are frequent, they may be frozen.