Yatra — Fake hotel booking

I have made a hotel booking for three days (24.12.20 - 27.12.20) at Digha in Hotel Surya Deep via yatra, com (booking reference number[protected]. But the hotel manager refused the booking and said they don't have any booking in Yatra or any online site so I was bound to pay again in cash for the same duration. I have attached the booking receipt done through yatra.com and the hotel bill cash receipt for your reference
I have already mailed several times to yatra.com for refund of Rs 5141 which was paid for the booking, But they replied they will resolve it within 24-48 hours. It is already 10 days from the first day of complaint.