Billdesk — Want a refund

I paid my college fees through the college online portal which used billdesk for payment. I used google pay upi to pay the money to the request which was successful, but some error occurred and the process was not completed. It is a big amount, that I can't pay again right now and I have to pay me fees, so please refund me the money.

Payment details are
Date and Time: 22 Jul 2024, 2:16 PM
Amount: 25, 900
Goodle Transaction ID: CICAgLD22abcSg
UPI Transaction ID:[protected]
To: govcollegeengkalahandi.[protected]@icici
From: [protected]@oksbi