This method is mostly a scam, and the normal inquiry of credit card limit will be displayed on the reissued card letter. In addition, you can also call the credit card customer service hotline.

If the QR code is provided by the other party, the remote cashier cannot see the other party at all. It is very likely that the money will disappear after the past, and the cash will be successful. Once it is seen by the bank, it will also affect the credit information.