匯豐銀行綜合戶口

C/A - find out the number from cheque book
S/A and USD a/c - find out the number from statement.
when do you open your Bank account?
Have you received monthly statement from Bank? If so, you could see the account number for each type of account e.g. USD, JYP, C/A or S/A.
If you still can't find out the account number, you could call HK Bank for helpful.
you just tell to the Bank: I want to know the bank account number in order to inform client to deposit/remit money into the account.