Delhi University — Fees paid but no acknowledgement

I had applied for the Provisional Certificate from the central portal of Delhi University and paid the fees for the same. But there has been no acknowledgement from the University for the same and the portal demands that the fees be paid again.

I have confirmed that the amount was debited from the bank and have evidence of the same.

Moreover, I had paid fees for the transcript to be mailed since it's not possible for me to physically collect it from Delhi. I have the fee receipt but the mail from the University is asking me to collect the transcript from the office.

Please help
Either refund the fees I have paid for the provisional certificate so I can pay it again or process my documents

For the transcript, the best outcome would be if I can get it through mail. Otherwise kindly refund the payment