1, look at the card face, credit cards generally have an expiration date, the name of the cardholder, and the cvv2 security code on the back. Not on the back of the savings card.

Look at the words on the back of the card and the opinions of the bank. The debit card will say.

3. Credit card determination: POS system can identify whether it is a credit card or a savings card according to the data returned by UnionPay. Deduct the corresponding handling fee.