I accidentally double booked (my computer froze) a...

I accidentally double booked (my computer froze) a 2 night stay on Booking.com, being overcharged $295. I made multiple calls and in the end, it was up to the resort to refund me. When I arrived, I immediately spoke with the manager, and she said she would contact the booking agency. Before I left the resort, the manager said I would receive my refund in about 7 days. I have still not received any refund and it s been months. I have sent numerous emails to the resort, and tried to contact them on Facebook. No one has responded. I m absolutely appalled that I was lied to, and virtually no attempt to help me was made. For the customer service as this resort, I would not recommend it.