Oyo Rooms — Refund / modification not allowed

I had made a booking ID GEP07846,
But due to some error i selected 27/10/2021 (current day) instead of 28/10/2021 (day i wanted to check in)

I had made book on[protected]:47:48

Instantly tried calling the hotel option, no one answered, all the representative of OYO denied the refund.

I would like to get my refund back.

After trying modifying instantly there was an error.

Spoke to the Oyo representative for almost half an hour straight and no positive response.