I changed 30,000 pounds at the Bank of China this year, and then I changed the money for others. Then I checked and said that the purpose is unknown, and I can't remit money or exchange money within three years. In my layman's view:

You can't exchange it or remit it.

You can't buy and sell between currencies, and you can't make foreign currency remittances.

Dual-currency credit cards and the like actually imply the function of changing foreign currencies at any time, and it is also impossible to deposit RMB and withdraw foreign currencies.

It is also possible to deposit foreign currency directly and then withdraw it. This does not involve exchange and remittance.