You can collect foreign exchange according to the middle rate of foreign exchange at the beginning of the month, or you can collect foreign exchange according to the middle rate of foreign exchange on that day.

At the beginning of the month, the central parity of foreign exchange is used to collect foreign exchange, and at the beginning of the month, it is used to settle foreign exchange. If you receive foreign exchange at the current foreign exchange rate, you will settle foreign exchange at the current foreign exchange rate.