Far too many dropped calls

I have far too many dropped calls and very bad signal. This is mostly around Fourways / Douglasdale area. I have tried to call the call center but always get cut off before completing the call. Nobody calls me back. I don't need anymore messages offering me free minutes due to the dropped calls. I have free minutes in my very expensive contract. I also often have callers complaining that I "hung up on them" before I answer. So the call does not ring and to caller it sounds like I have disconnected the call. Very bad for business. I am requesting a solution to this or some kind of financial compensation due to the inconvenience and loss of business.

Sharyce