If the cardholder finds that the credit card is blocked by the bank, he should first call the bank to find out the specific reasons for blocking the card. If the credit card is frozen due to overdue, the cardholder will wait patiently for about 3 working days after paying off the arrears, the card will be unsealed, and then it will be used normally for one day.

If the banking system has abnormal transactions due to many large transactions. Cardholders need to bring small receipts and other relevant documents to the bank to unlock the card. After the application is approved, it will take about 1-3 working days to cancel the card. After the cardholder's credit card is unsealed, it can continue to be used normally without waiting.

If the card is blocked due to system failure in the bank, the bank will generally take the initiative to unseal it, and it can be used normally after unsealing. Cardholders can also report the situation to the bank and urge the bank to unblock it. Generally, it can be unsealed after recovery, and the credit card can be used normally after unsealing.

In addition, it should be noted that if the credit card is blocked due to overdue bills, the credit limit of the cardholder's credit card may be reduced after the card is returned.