Terrible service from Booking,com and Wex1 Apartments

I booked an hotel through booking.com and wanted to get my dates changed. I logged the request with booking.com and then they said that they need to speak with the hotel who didn't seem to respond.

When I called the hotel, the said that I must contact Booking.com. So I am been given the run around here after paying in full for my booking.

Today, the 14th June I received instruction on where to get the keys to my hotel room and when I called the hotel to tell them that I asked for my booking to be changed, they again said that I must speak with booking.com

I am at the point of no return with these two companies. I will never again in my entire life deal with Booking. com or Wex1 Aparments in Cape Town.