credit card details cannot be deleted. Credit card consumption records are kept in the banking system, and according to the regulations of the People's Bank of China, all card-issuing banks are required to upload customers' consumption and repayment records on a regular basis, which cannot be tampered with. Banks only feed back the historical usage records truthfully, and will not make any bad comments on the usage records. The existence of these records will help banks to better query the usage situation and evaluate the credit status of customers. Credit card is a kind of payment tool issued by commercial banks or other financial institutions, which has all or some functions such as consumer payment, credit loan, transfer settlement, cash deposit and withdrawal, records the relevant information of the cardholder's account, and gives the cardholder a certain credit limit, within which the cardholder can spend first and then repay.