Used to repay foreign currency (USD/GBP, etc. For credit card arrears, the cardholder can use the savings card of the Bank or other banks such as workers, peasants and Zhong Jian to make repayment through platforms such as "Discover Wonderful" APP, official WeChat account of Guangfa Credit Card and Guangfa Bank APP, and the cardholder can also simultaneously open the bank/UnionPay inter-bank automatic purchase of foreign exchange for repayment.