You can check whether the extra card is a bank card or a credit card. If it is a credit card, it may be that the staff of other banks filled out an extra one for you when applying. For the sake of safety, it is recommended to cancel at the bank. If you don't want to use the bank card or more, you can directly take your identity certificate and bank card to cancel your account at the bank counter. Account cancellation process: the cardholder carries relevant documents to the bank counter to verify his identity. (mainly to confirm that the bank card holder cancels the account himself) Enter the bank card password to confirm that there is no balance in the bank card account. If there is still a balance in the bank card, the cardholder can choose to directly withdraw or transfer to other bank card accounts to complete the bank card account settlement. Cancel the bank card, and cancel the associated online banking and bound mobile phone number.

1. Credit card, also known as debit card, is a credit certificate issued by a commercial bank or credit card company to eligible consumers. It is a card with name, expiration date, number and cardholder's name printed on the front, and a magnetic stripe and signature strip on the back. Consumers with credit cards can go to specialized commercial service departments for shopping or spending, and then the bank will settle accounts with merchants and cardholders, and cardholders can overdraw within the prescribed limits.

2. Lawyer Chang Sha of Kyoto Law Firm introduced that Article 7 of the real-name registration system Regulations on Personal Deposit Accounts stipulates that if a personal deposit account is opened in a financial institution, the financial institution shall require it to show its identity document, check it, and register its name and number on the identity document. When an agent opens a personal deposit account in a financial institution, the financial institution shall require him to show the identity documents of the principal and the agent for checking, and register his name and number on the identity documents of the principal and the agent. Financial institutions are not allowed to open personal deposit accounts for people who do not show their identity documents or use their names falsely. At the same time, Article 9 stipulates that if a financial institution violates Article 7 of these Provisions, it shall be given a warning by the People's Bank of China, and a fine ranging from 1000 yuan to 5,000 yuan may be imposed; If the circumstances are serious, it may also be ordered to suspend business for rectification, and the directly responsible person in charge and other directly responsible personnel shall be given disciplinary sanctions according to law; If a crime is constituted, criminal responsibility shall be investigated according to law.