The trading day listed in the credit card bill of the undertaking bank is inconsistent with the actual trading day of consumption, which may be due to the regulations of some shopping malls and other business places, and the trading day of the bill is later than the actual trading day. All the consumption items listed in the bill are obtained by the signing bank from the acquiring bank through UnionPay. The cardholder can confirm the consumption by checking other details (such as the name of the merchant, the transaction amount, etc.). ).