China Merchants Bank credit card 24-hour customer service hotline: 400-820-5555. The cardholder should enter the ID number/,check the password, and select 9 to switch to manual. For customers without or password, after dialing, select "3#→ 1→3" to switch to manual operation.
Tips: You can call 862 1-38784800 or 86-400820555 overseas.