1.POS merchants can first ask customers to write instructions, explain the refund amount and reasons, and approve the current POS credit card transaction.

2. Write a receipt, which means that the customer has to hand-write a receipt about the refund, and the refund has been made by merchant transfer or cash.

3. After the POS merchants ask the customers to write these two instructions, they will deduct the POS card processing fee and return the money to the customers. It should be noted that POS merchants need to verify whether the cardholder has made a transaction and whether the cardholder's signature is consistent with the label on the back of the bank card. Show your ID card and take photos of the receipt.

Extended data:

Precautions for pos card consumption:

1. When an error transaction occurs, the document must be torn up: when an error transaction occurs for whatever reason, if an existing transaction document is generated, the wrong transaction document must be torn up. At the same time, the salesman must be required to issue a offsetting bill to offset the original wrong transaction or obtain a refund certificate from the merchant.

2. If the first credit card consumption is unsuccessful, you need to credit the card again, so be sure to check the consumption details of the bank card. Once the consumption details are found to be different from the actual situation during the inspection, contact the seller and the relevant bank immediately to avoid unnecessary financial losses.

3. When signing the account for consumption, be sure to check whether the transaction consumption amount is consistent, confirm whether it is consumed through the bank card number, and whether the currency is consistent with the actual consumption situation. After checking the above information, you can sign for consumption.

Baidu encyclopedia -POS consumption

Baidu encyclopedia-cash refund