Sun City Cascades Booking Nightmare

I called central reservations and cancelled a 2night stay at Cascades. They confirmed cancellation telephonically. I have been trying to get hold of them for 3days straight and when I finally get through today to move those bookings to next month, they say my booking was a no show and will be forfeited. We pay premium price to stay at Cascades and the service is absolutely shocking. Never again!!!