Request for Refund from Booking.com

I recently booked accommodation at this hotel in India and cancelled the booking in time, with a FREE Cancellation, yet the hotel deducted the full amount from my bank account despite having cancelled .

During this last week I communicated this to Booking.com and the hotel requesting a refund. I sent both Booking.com and hotel full details as per their request five (5) times and yet they keep asking for the same information.

How many more times do I have to send this information before some positive out can be received.

See details below and I uploaded my bank statement reflecting the payment.

Confirmation number and PIN code: *** 9465 • Email address (used to make the reservation): *** • Accommodation name and location: Ramee Guestline Hotel Juhu, India • Check-in date and check-out date: 15 Sept - 19 Sept 2023