Vikram University — Payment done two times for one form fees

I alpana pal paid tuition fees for phd on 23/04/2021. But payment had not done and money was deducted from account. The money was 17440/-. So I waited for 4 days to update. But website was showing that the form fees was not done. So I complain to bank branch they told me that my amount was already deposited in vikram university. But I paid my fees two times when your confirmation did not I get. So please refund my money l. I have evidence that showed which money has deposited Vikram university.