What if the mobile phone number is bound by someone else's bank card?

Contact the bank staff to unbind the mobile phone number and change the binding information.

1. Contact the bank immediately: call the customer service number of the bank or go to the bank outlet to explain the situation to the staff, and ask to unbind the mobile phone number and change the binding information. Provide relevant identification and account information to verify identity.

2. Verify your personal identity: The bank may ask you to provide personal identification documents, such as ID card and passport, to ensure that you are the legal account holder. Prepare these submitted documents.

3. Cooperative investigation: The bank may initiate internal investigation procedures to determine whether there is fraud or other misconduct. Cooperate with the bank's investigation and provide any additional information or evidence to help them solve the problem.

4. Change the binding information: Once the identity is confirmed and the mobile phone number is unbound, it is necessary to update the binding information with the bank staff, including changing the mobile phone number and setting new security measures, such as password and secret protection.