Still no refund from Booking.com

For the first time, I tried booking a 3 night stay in a Hotel in Clanwilliam to take my wife for her birthday. Upon the payment being made I was immediately told there was an issue with the booking and I was given an option of either trying to re-book or get a refund. I opted for the refund as I didn't want to be in a situation where I was paying twice and still not get a booking. I was informed I can expect a full refund in 7-12 days. This was on the 10th of June 2025. I am still waiting for the refund and trying to contact booking.com is like being on a roundabout. No accountability, as with any large corporation these days. No money back, no joy, not happy. I have now been in contact with Booking.com seven times and still no joy. Just a chance to re-book. Please can someone a booking.com sort this out. Out of pocket over R3000.00. This is shocking.