Riding a horse and wearing a belt buckle is one thing. For example, the name of the merchant printed on the small ticket after swiping the card is inconsistent with the credit card bill, and it is displayed on other merchants. This is the meaning of condom. On the contrary, it is one machine and one yard. If the displayed merchants are not only inconsistent, but also low-rate merchants in the UnionPay rules, it is code skipping!