If you have a China Merchants Bank credit card and you receive an unknown consumption text message from our bank, or you need further confirmation of certain transaction information, please call our customer service hotline --- enter the account opening certificate number # -- --Check the password and enter the manual to assist you. If necessary, the staff will advise you to report the loss of your card. If fraud is involved, it is recommended that you report the case and the bank will assist the public security agency in the investigation.