Bharath University — Fee refund

I didn't get my money refund which I was payed to them in the month of September. I took admission into Bharath University but cancelled it for some issues. Then fastly I sent an email to them there was no response to that mail. So my brother went to the university and gave supported documents such as cancellation letter and fee receipts etc
So please try to solve my problem as soon as possible and refund my back.