How does Sanxiang Bank modify the mobile phone number of the bank card?

Hello, if you mean the mobile phone number bound by personal online banking; It is necessary to bring a valid identity document, bank card or passbook to any outlet of the National Postal Savings Bank for modification;

If you mean to modify the SMS notification service for the change of current account, I suggest you go to the counter of the Postal Savings Bank in the province where you open the account.

If you mean the mobile phone number bound by Alipay cartoon or Tenpay, if you have registered personal online banking, you can log in to online banking and click Apply for Opening-Online Payment-Mobile phone number modification to operate; If personal online banking is not opened, you need to bring a valid ID card, bank card or passbook to the business hall of China Postal Savings Bank to modify your mobile phone number; I hope my answer is helpful to you.