Merchants often encounter the situation that the POS machine does not print out the receipt after swiping the card, but the cardholder's mobile phone receives the bank debit reminder message. In this case, businesses and customers should not be confused and flustered. They should use a UnionPay card at the first time.

1. Make an inquiry or consumer transaction on the POS machine (if any amount is 0, the POS machine will prompt "automatic reversal is successful", and the cardholder will also receive a bank prompt message that the deduction has been returned to the account.

Let the merchant pay the bill immediately and the consumer's money will be returned to his card immediately.

3. Brush a small sum with the bank card that has just been used without a receipt, and return the money that has not been refunded to the cardholder immediately.

This happens mostly in telephone POS machines, because the data transmitted by telephone lines is unstable. If this happens frequently, it is recommended that businesses report to the telephone company for repair and check the lines.