after the automatic foreign exchange purchase function is enabled on CITIC Bank's credit card, the RMB deposit will be automatically purchased on the day of receipt and the foreign currency bill will be converted at the exchange rate on the day of repayment. If automatic repayment of RMB and automatic purchase of foreign exchange are started at the same time, the RMB and foreign currency bills that are automatically repaid on the last repayment date of the bill will be converted at the exchange rate on the last repayment date.