The mobile phone number bound by Master Xing. After payment, there will be a number authenticated by SMS. How to change my mobile phone number?

Do you mean debit card (that is, savings card) or credit card? If it is a debit card, there are two ways to modify it: First, if you have a network shield certificate, the old mobile phone can also receive the SMS verification code once, and you can modify it online, that is, log in to the personal online bank with the certificate, select "Service Management" and click "Online Transaction SMS Protection Function" under "Service Management". Some account lists will appear on the right, select the card to modify, and then click Next. Then there is an agreement. You need to agree. Finally, you will enter the interface of turning on/off SMS protection. You have to turn off the SMS protection function of the old mobile phone first. Turning it off will send a verification code to your old number. Enter it again and it will be closed successfully, and then you can open the new number through the interface. Second, if there is no network shield certificate, the old mobile phone can't receive short messages, so take the card and ID card to the local Industrial Bank outlet for modification.

If you are talking about a credit card mobile phone, you can directly call 9556 1 to find customer service to change it, or you can log in to the Industrial Credit Card online bank and modify the information yourself.