Quadrant Apartments in Cape Town

I have rated one star only because you cannot proceed onto the comment without a star rating, but I'm so upset with Booking.com that I would not even have given them 1 star. I've been trying to rebook accommodation that was booked, paid for and then canceled by the property because of Covid. I was promised that I could rebook whenever I was ready and have been trying to rebook this accommodation for weeks. Booking.com does not reply to the emails, there is no telephone number to contact, the property cannot help as all apartments are privately owned, no telephone numbers exist on any of the emails from the property. Am I to just lose my money?