1. Open the cashbox payment software, log in to the account, and click Personal Account. Click Bank Card Management, and click the "Manage" button.
2. In the bank card management interface, select "Delete".
3. After clicking Delete, the dialog box "Are you sure you want to delete the bank card binding" will pop up. Click OK to delete the bank card binding and unbind successfully.
4. After successful unbinding, you can bind a new bank card according to the method of binding a bank card.