[Resolved]  Oyo Rooms — Data Privacy Breach and Fraudulent Transaction

I booked Oyo Townhouse HaHa Stays, Perungudi from August21 to 27 from booking.com. I paid the half payment two days before my stay.
Someone from Oyo called me on 21st August morning to pay ther remaining amount of Rs.5994 to confirm the booking against my booking. I paid the amount to the bank account he shared. He asked me to send it again as the amount for struck. I paid Rs.5994 again. He said the amount got struck and it will be refunded and again asked me to pay Rs.11987 after entering booking id in the remarks. I paid the amount as per his direction. He once again said the amount got struck. When he asked to pay again I got suspicious and by that time I reached reception and paid the balance Rs.5994 in the reception itself. When I enquired the reception, they denied the call and told Oyo might have called. This person didnt refund my money and not answering my calls. I'm attaching the whatsapp screenshots and the bank transactions screenshots here. How did my booking details get to that person? I need a strong explanation and the refund.