I never use bank draft before so I have a question here.

Is the bank draft amount must be fixed? For example, I'm paying PTPTN one shot in order to enjoy the 20% discount. At this moment, I do not know how much the exact amount to be paid after 20% discount.

So I wondering how is the bank draft works if the amount that I wanted to use is unknown.

Thanks, I had done it

It's better to go back your account branch because I did that. But I heard that amount lesser than 25k can do at any branch. For safety, you better check with your bank first.