There are a few websites that support UnionPay, but there is an exchange fee for swiping foreign currency. Most websites, Meiya and Riya still support VISA and MasterCard. It is best to have a full currency card, which is convenient for Haitao. At present, many banks are free of exchange fees for all-currency cards. A dual-currency card is also acceptable, that is, you need to purchase foreign exchange for repayment.