Booking.com complaint: Erroneous cancellation of reservation

I had a $3,640.49 reservation for a 7-day vacation at Grand Park Royal in Cancun from 5-28-22 thru 6-4-22 with the agreement to pay upon my arrival. I received an email from booking on 5-27-22 that stated that my reservation was cancelled. I called them and the agent said that the hotel had cancelled the reservation. He put me on hold to contact the hotel. When he came back, he said that he spoke with the people at the hotel, and they were going to reinstate my reservation. Do not worry Mrs. Gonzales he said, I will fight for it. He assured me that he was going to take care of us. When I arrived at the hotel, they stated that booking cancelled my reservation, not them. They could not reinstate my reservation because they didn’t cancel it. They didn’t have a similar room available, so they offered me a villa that was $1,931.00 over the price of my original reservation. Being at the hotel, I had no choice but to accept. This situation put my family through a very high level of stress. No one deserves to go over a situation like this, especially when you are traveling with your kids.