Securities trading requires opening an account and binding a bank card. Generally, a securities account supports the binding of five bank cards, but the bank cards bound to a securities account will not be automatically cancelled if they are not used for a long time, and users need to unbind them:

1. Bring your valid personal identification and bank card to the business department of the securities company for handling;

2. Find the staff to show their intention and need to untie the bank card of the securities account;

3. Fill in the application form for bank card unbinding business;

4. The staff untied you successfully.

In addition, investors can also directly change the third-party depository bank online through the securities company official website or APP, but to cancel the bank card account, they must go to the securities business department.