In fact, the methods provided by banks to change the mobile phone number bound by credit cards are similar, and the counter handling and customer service telephone handling are commonly used.

Counter handling: if the mobile phone left by the cardholder when handling the credit card needs to be replaced, the cardholder can change the mobile phone number at the issuing bank outlet with his ID card.

Customer service telephone handling: If the cardholder's original mobile phone number can still be used, you can call the customer service of the issuing bank, and the bank will generally change the bound mobile phone number for the cardholder through mobile phone verification; If the original mobile phone number can no longer be used, the issuing bank will inquire about the cardholder's information by calling the customer service phone of the issuing bank to help the cardholder modify it.

In fact, whether it is counter handling or customer service phone handling, bank staff will check the applicant's information and generally ask for more personal information. When applying for a credit card, they use personal real information, so they should be able to answer. Moreover, it is necessary to fill in the application form and verify the ID card to change the mobile phone number at the counter, and it may not be necessary to answer many questions like telephone customer service, so it is recommended to try it at the counter of the bank outlet.