Paying for a Service not being Provided Again

Telkom has been providing a terrible service. I have had problems since December. Firstly, you report a fault over the phone and after 3 times there is still no response and when you go into the store they state that no fault has been reported. Eventually, I get a response from a technician from Telkom in which he comes to my house to fix the problem. He says that the fault is with the router and that we need another one. We provide him with another route, however, we do advise him that the pole mounted distribution box is broken. A week or so later the replaced route has blown. I go into store to report the fault I have still not heard from Telkom a week later. Following this I decide to take the router to the store but the technician was not in. The lady from Telkom told me that he would be in the next day, however, when I went back the next day, the only technician had left early. Also the store manager is not there and no one knows where he is. Thabo a man helping me was rude and kept looking at me blankly. When I asked for the complaints line he put me through to sales. I am appalled by this service, all I want is for my internet to be fixed. Is Telkom capable of this?