1. You can log in to your personal account in mobile banking or online banking first, and then go to the "Personal Account" option to check the account balance and account details, so that you can know which bank card is debited;
2. The relevant bank outlets can inquire about the details of the change and consult the bank customer service staff about debit cards.
If there is a third-party deduction platform to deduct money without your knowledge, you can contact the bank customer service staff or the deduction platform. If the wrong operation leads to the deduction of fees, ask whether the relevant amount can be refunded. If you have cancelled the confidential deduction by yourself, you can cancel the relevant deduction on the mobile banking or third-party deduction platform.
Click the "account security" or "payment security" option, and then click to enter the "confidential payment" page, find the deduction, close the relevant authorization and complete the operation. When using bank cards, you should try to avoid clicking on unknown links to avoid problems such as property loss and personal information disclosure caused by viruses in mobile phones or computers.