Of course you can use it

If the poster’s card is a dual-currency card of regular card or gold card level, and the transaction is through the network of an international organization (i.e. VISA, MasterCard, JCB), the transaction The Vietnamese dong will first be converted to US dollars/euros according to the exchange rate (specifically, it depends on the foreign currency account currency of the poster's credit card), and then deposited into the foreign currency account, which will charge the poster a currency exchange fee of 1.5. When repaying the money, the host can choose to call his home phone number to handle the repayment of the foreign exchange purchase on the day when he repays the RMB to the credit card.

On the contrary, if you trade through the UnionPay network (the merchant has the UnionPay logo), there is no currency conversion fee and the payment will be settled directly in RMB.

If the poster’s card is his standard platinum and above level card, regardless of whether the transaction is through UnionPay or an international organization network, the Vietnamese Dong will be converted into RMB and credited to the account. There is no currency conversion fee and it is also direct. Just pay back RMB.

If the poster has any other questions, you can ask