I made a booking months in advance

I made a booking months in advance. The bookings was confirmed and charged in full. When arriving, the owners had no idea about the booking. They said they had requested multiple times for the listing to be removed. Booking.com confirmed and charged for the booking without the owners notice. I had to pay hundreds of dollars extra to get a tiny hotel upon arrival. No response from booking.com for two days. Still no refund. My whole trip and experience with booking.com was a total nightmare. Can't call them, they don't respond to messages on the app and you can't reply to their emails. Never again will I use this platform, they will drop you and don't even attempt to make things right.