First, at present, Agricultural Bank of China does not have a dual-currency credit card with RMB and Korean won, so there will be no situation where the balance owed on Agricultural Bank of China's credit card is Korean won.

Second, if you hold a single-currency card starting with 62, when you swipe Korean won, it will be dynamically converted into RMB and credited to your account. The cardholder only needs to repay the amount according to the balance shown on the bill. The corresponding RMB is enough.

Third, if you hold a US dollar/RMB dual-currency credit card and use a US dollar account to pay, then the Korean won will be credited to the account in US dollars. After the bill is issued, if you have US dollars, you can repay it in US dollars. If you don't have US dollars, you can just use RMB to buy foreign exchange to repay the money.

Fourth, if there is an overpayment in U.S. dollars due to consumption returns or tax refunds on your credit card, you can call the customer service number and apply to transfer the overpayment in U.S. dollars into your RMB account.