China Merchants Bank credit card customer service hotline: 4008205555 (for landline phones, you can dial the toll-free number 8008205555). Please call the China Merchants Bank credit card customer service hotline: Card holders please enter the ID number or card number # and query password # according to the voice prompts - then select "9" manual service - "6" more services to enter manual; if you do not hold Card customers, please follow the voice prompts and press 3# Credit Card Application Consultation - 1 Credit Card Application Consultation - 3 Credit Card Application to enter manual.