You can use China Merchants Bank mobile banking to inquire, and China Merchants Bank mobile banking can be downloaded and used for free in major mobile app stores. The specific query method is as follows:

1. After opening the mobile phone of China Merchants Bank, find "All" and click Enter.

2. After entering, find the "purchase of foreign exchange" item under cross-border finance, and click Enter.

Third, after entering the foreign exchange to buy foreign exchange, choose any foreign currency to enter, taking the US dollar as an example.

4. After entering the entrustment for purchasing foreign exchange, find the item "Quota Inquiry of Foreign Exchange Management System" and click Enter.

5. After opening the inquiry system, you can inquire about the remaining amount of foreign exchange purchased by individuals.