Do I need to change the telephone number of China Postal Savings Card at the bank? Can I do it in different places?

Hello, if you mean the mobile phone number bound to the SMS notification service for current account change; You need to bring a valid ID card, bank card or passbook to the business hall of China Postal Savings Bank in the province where the account is opened for modification; If you intend to modify the mobile phone number bound by online banking, you can modify it at any postal savings bank outlet in the country that has opened the online banking counter business; 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 has not been opened, you need to bring a valid ID card, bank card or passbook to any China Postal Savings Bank outlet to modify your mobile phone number; I hope my answer is helpful to you.