The credit card (debit card) signature column is on the back of the credit card (debit card). There is a blank space on the back of a credit card (debit card) where the cardholder's signature is written. Signing on the back of a credit card (debit card) is very important. If there is no signature on the back of a foreign credit card (debit card), you can't make a purchase. A signed credit card (debit card) can reduce the risk of being stolen.

If a credit card (debit card) is swallowed by ATM, the cardholder can also get the card back by signing on the back. When signing, you should pay attention to distinguish it from the usual signature, so as not to be imitated by others.