How does China Merchants Bank modify the reserved telephone number through online banking?

For the contact information of China Merchants Bank card, you can log in to Professional Edition 6.0, click Account Management-Modify Customer Contact Information (for Professional Edition 7.0, please click the "Settings" option in the upper right corner, and then select the "Modify Contact Information" menu), and make an appointment, query or modify the mobile phone number according to the prompts, which will take effect immediately after the setting is completed. If you don't apply for the professional version, please bring your valid ID card and one-card to any counter of our bank for modification. Tips: The mobile phone number reserved or modified here is M2 personal standard mobile phone of our bank system, and its application scope: notice of fund deposit and withdrawal; Obtain verification codes for batch payment and contract transfer; Public version of payment SMS notification; Mobile phone number bound by mobile phone payment; The popular version of the self-service payment number applies for verification code acquisition; Apply for the online payment function of the popular version; Handle functions such as withdrawing money without a card.