the first method: handling at the bank counter.

Needless to say, just take your ID card and bank card to the bank for processing. Needless to say, the specific method will be fully understood when you get to the bank.

the second method: online banking.

1. plug in the equipment of online banking and log in to online banking (take ABC as an example).

directly connect our devices such as K-Bao or U-Shield to the computer to log in to online banking.

2. Log in to personal online banking.

enter the interface of online banking, select the first option, personal bank login, and then select certificate login. It should be noted here that if you have an account and password to log in with a user name, don't use it either, because self-service users can't do this business.

3. select the customer service option.

There is a menu at the top of online banking, and you can choose one item of customer service.

4. modify the mobile phone number in the basic information.

in the customer service submenu, you can modify your mobile phone number by clicking the basic information.

The reserved mobile phone number is the spare mobile phone number. If anything happens, can you contact this mobile phone number urgently? And often, because of many reasons, the mobile phone number will be changed, so it is necessary to change the reserved mobile phone number.

Credit Card (English: credit card), also called credit card. It is a non-cash transaction payment method and a simple credit service.

Credit cards are generally special carrier plastic cards with consumer credit, which are 85.6mm long, 53.98mm wide and 1mm thick. It is issued by banks to individuals and units, whereby they can shop, spend money and deposit and withdraw cash from banks. The form is a card with the name of the issuing bank, expiration date, number and cardholder's name printed on the front, and the card surface has chips, magnetic strips and signature strips.