1. If you swipe your card in a supermarket and there is a problem with the POS machine and the receipt does not come out, should you try again? I have seen many people swiping twice and getting deducted twice, which is very troublesome. ------For this, you can immediately call 95516 UnionPay to check whether 2 transactions have occurred. If there are any, they can be refunded immediately (called 'reversal')

2. If the receipt is not issued for the first time , but my text message came, should I show the text message to the salesperson? --Same as above, call 95516 and someone from UnionPay will handle it.

3. What if I didn’t issue a receipt the first time, and then I switched to cash, but later found out that money was also deducted when I swiped my card? --Call 95516 or bank customer service. It is recommended that you call 95516 because even if you call the bank, they will still forward it to 95516. .

4. If the receipt comes out and it is found that the account is wrong, but the password is the consumption, even if I did not sign, the money has been deducted. What should I do? Can I confirm that the other party has lost before entering the password? How much is it? ---When you are asked to enter the password, the machine that presses the password will display the amount, and the amount will also be displayed when you sign. If there is any mistake, please inform the operator in time. It is easier to do it in supermarkets and department stores, but if it is a personal store, It took me a long time to explain to my boss.

In short, if you have this kind of problem, you can directly call 95516 or the POS fault warranty number, which the boss has.