Tamil Nadu State Transport Corporation [TNSTC] — Amount debited but ticket not booked and refund not received

Hi, I've tried to book a ticket to Dindigul from Chennai on 21 Sept 2022. The amount Rs. 475 got debited from my account but the ticket didn't get booked due to failed transaction. I did pay through UPI and the transaction failed at billdesk. I've attached the screenshot of the payment for your reference. It's been 6 days and I have not received any refund. I request you to issue me the refund immediately. I booked the same seat again after paying the same amount.