1. If the credit card is cancelled by the bank, it will be repaid. According to the Administrative Measures on Customer Identification and Customer Identity Data and Transaction Records of Financial Institutions, bank account information shall be kept for at least 5 years from the year of transaction records. Therefore, after the credit card is cancelled, the account still exists, and the customer can also check the transaction record of this credit card as needed.

2. The interest-free period of credit cards will exceed 50 days at the longest, and there is also a time difference between the billing date and the repayment date. When citizens cancel their credit cards, they may not be credited in time after credit card consumption, resulting in some customers' credit card arrears and long-term "invisible" interest. Therefore, when the customer cancels the credit card, it is best to call the customer service phone of the bank about 40 days after the card cancellation to confirm whether his account has been cancelled successfully, so as to avoid trouble in the future.