There are two ways to modify the mobile phone number bound to a Pudong Development Bank credit card: one is at the counter, and the other is by phone. \x0d\　 If the mobile phone number provided by the cardholder when applying for a credit card has changed and needs to be changed, the cardholder can go to the branch of the card-issuing bank with his/her ID card to change the mobile phone number. \x0d\ If the cardholder’s original mobile phone number can still be used, you can call the customer service of the card-issuing bank. The bank usually changes the bound mobile phone number for the cardholder through mobile phone verification; if the original mobile phone number can no longer be used, the cardholder After calling the card-issuing bank's customer service number, the card-issuing bank will help the cardholder make modifications by checking the cardholder's information. \x0d\　Note: After modification, remember to bind quick payment online. If mobile phone verification is required, modifications are also required.