If you need to inquire or modify the reserved mobile phone number of China Merchants Bank's credit card, you can log in to the online banking professional edition and click Credit Card-Customer Management-Data Modification. Customers and supplementary cardholders who have not applied for the professional version need to call the customer service hotline. Modifying the reserved mobile phone number of China Merchants Bank's credit card through online banking will take effect immediately, while the modification by calling customer service will take effect within 24 hours.

Credit card holders of China Merchants Bank need to reserve their mobile phone numbers to receive verification information when using account number to pay, binding website to pay quickly, opening online banking by themselves, logging in online banking and reporting the loss of credit cards. The importance of reserving a mobile phone number for a credit card is self-evident. Therefore, it is necessary for cardholders to improve their safety awareness. Once the reserved mobile phone number is found to be abnormal (for example, the bill is not received in the current month, and there is no SMS reminder for large consumption), you should communicate with customer service in time to prevent the reserved mobile phone number of China Merchants Bank from being maliciously modified by others.