Congested Network now my problem

We relocated from Witbank to Centurion on 28 January 2015. Since the first day we have just about no data or voice connectivity. I logged a case with the Network department on 13 March 2015 and was promptly attended to by one of the network technicians. The feedback on the report from the technician states that we experience bad voice and data reception due to high congestion and we must wait two months for some or other thing to happen. This is unacceptable, I can't work from home as I don't have data connection, nor can I attempt to make or receive cell phone calls as they keep on breaking up or gets disconnected. I pay for a service which I don't get, why don't they stop payments until such time I can make use of their services, or even better just cancel all my contracts, collect their devices and I will find a service provider that can provide me with the adequate service.