Why can't the foreign exchange bought by BOC be used?
Because online banking can be associated with multiple accounts such as current all-in-one, debit card, time deposit, credit card, etc., it is necessary to confirm which account to use for foreign exchange trading before conducting foreign exchange trading. Generally speaking, you use a debit card. You only need to set which card to use as a foreign exchange trading account when entering foreign exchange trading. LZ should enter the trading system directly first, but the above prompt will appear before you choose which account to use.