when spending by credit card, the cashier has the right to cancel the consumption and refuse to sell the goods if he finds that the signature on the signature sheet is inconsistent with the signature on the back of the credit card during the signature checking process. The loss caused by the settlement without verifying the signature shall be borne by the merchant, but if the brush is stolen without the signature, the cardholder shall be responsible.

signature is an important proof to confirm the identity of the cardholder. If the cardholder swallows the card at ATM, the bank staff can check it with the signature on the back of the bank card and the passbook as the basis for returning the card without verifying the identity of the cardholder.

In China, credit cards are generally used for password consumption, so many cardholders ignore the importance of signature. But in foreign countries, many times you don't need a password, just sign it. Therefore, if the cardholder does not sign back, normal consumption may be affected when going abroad to play.