Shopping receipts exist to prevent credit card adjustment. Their signatures can help enterprises get rid of legal relations such as credit card fraud after the credit card adjustment is started, so the receipt is very important. However, the domestic credit card adjustment rate is very small, and generally no one adjusts the bill, so you can tell your boss what the credit card transaction is in this 10w receipt, and the transaction date is half a year. After half a year, it will be fine if there is no adjustment. You can explain it to the boss.