First of all, this part of your refund is equivalent to a sum of money deposited in your credit card, and you will go through the normal procedure. For example, if your credit card is in arrears, you will pay it back first in order. So it's equivalent to you paying back such a sum of money. I didn't list such a sum of money separately for you on the bill. Other unpaid amounts will still be refunded according to the original method and date.