Call the customer service hotline: after calling the customer service hotline of the bank, you can enter the manual service with your ID number and inquiry password, and contact the customer service staff of the bank to modify the mobile phone number. The modification of the mobile phone number will take effect immediately after checking the identity information.

BOC Credit Card is a dual-currency credit card issued by Bank of China. It has the functions of circulating credit, such as first consumption and then repayment, interest-free repayment period and minimum repayment amount. It can be traded at all special merchants and ATMs connected with VISA, MasterCard and China UnionPay at home and abroad. It is a global credit card that meets international standards.