Fee remission approved how long does it take to get a refund after it’s been credited?

i got my fee remission form approved after 7 months but the issue is that I’ve already graduated 😭😭😭 they’ve already credited it and asked me to fill a refund form but I want them to credit it into a Australian bank account (I paid from overseas bank) in my name. How long does it take to get the refund after you submit the form if anyone else’s got approved ??