The credit card was spent 200 dollars for no reason.

Take the credit card of China Merchants Bank as an example. If you receive an unknown short message from our bank, or you need to further confirm some transaction information, please call our customer service hotline-enter the account opening certificate number #-and check the password to assist you manually. If necessary, the staff will advise you to report the loss of the card. If stolen brushes are involved, you are advised to report the case, and the bank will assist the public security organ in the investigation.