Future banks are about to expire. The bank calls the customer to confirm his identity, so as to verify his identity and remind him of repayment. Specifically, it has the following meanings:

1. authentication: the bank needs to confirm the identity of the customer to ensure the security of the account. This is because I haven't contacted the bank for a long time, or the bank has found suspicious trading activities.

2. Remind repayment: Banks need to remind customers that loans or credit cards are about to expire, so as to repay in time and avoid bad credit records due to overdue.

3. Selling products: Banks take this opportunity to sell other financial products to customers, such as wealth management products and insurance.

4. Customer service: Banks want to know customers' satisfaction with banking services, so as to improve service quality. When a customer receives such a call, he can first confirm the identity of the other party, such as asking the other party's job number and department. After confirming that the other party is a bank employee, you can verify your account according to the information provided by the other party and take corresponding actions as needed.