There are US dollars and RMB in the secondary card flow of visa card of Bank of China. Do you want to return these two?
Yes When spending in dollars, cardholders need to purchase foreign exchange from the issuing bank for repayment. The exchange rate used is the selling price of the issuing bank in US dollars on the day of repayment. VISA single-label cards use US dollars for consumption, so they must also be repaid in US dollars. In China, you need to go to the bank to purchase foreign exchange in RMB for repayment. Visa cards contain US dollars, but not necessarily RMB. If there is a UnionPay logo on the card, it includes US dollars and RMB. If there is no UnionPay logo, it only contains US dollars.