If so, please note that,

1. If you want to remit RMB back to China, you can only remit it to a domestic account with the same name (for yourself), and you can only remit RMB 80,000 at a time. If you want to give someone away, you can only remit HK$/USD.

2. Online banking remittance is also acceptable, but just fill in the form at the branch and register the remittance information. I suggest you go directly to the branch for the first time.

There is no RMB promissory note issued by Hang Seng.

4.$ 100 handling fee $50 telegram fee (Chinese character 100)

I hope I can help you. Reference: yourself, do you mean that Hong Kong dollars must be foreign currencies?

Suppose you are Hong Kong dollars, you can use e-ebanking to transfer money, but it is more than the handling fee.

In addition, if you are not afraid of trouble, you can go to the Hang Seng counter to buy a cashier's check and put it in the ICBC account.