How does the Postal Savings Bank untie the bank card?

1. Open the mobile client of Postal Savings Bank, enter my mobile phone number and password, and click Login.

2. Enter the main interface, click "My" in the upper right corner, find the "Bank Card Management" option, and click Enter.

3. On the bank card management page, you can see all the bound bank cards, and select the card to unbind.

4. Enter the card details page, click the "..." icon, and select "Unbind" from the pop-up options.

Enter the bank card number and related password to be unbound according to the prompt, verify the identity, and click "OK" to complete the unbinding operation.