What is the impact of credit card transfer on the merchants of this transaction?

Your question is not very clear. I think it can be understood from two aspects.

1. The cardholder doesn't know the consumption situation, or doesn't remember whether to swipe the card clearly, and asks the credit card to adjust the bill;

2.XX Bank Credit Card Center found abnormal transactions of merchants from the background monitoring, and needs to know the details of these transactions.

If it is the second type, all the cards swiped by this merchant will be under monitoring and may be blacklisted at any time. The reason is malicious cash. Merchants' POS will also be warned or banned by UnionPay.

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