City of Cape Town Constantly Cuts Me Off

I have been overcharged for electricity in the sum of roughly R8,000.00. I called City of Cape Town and after holding, eventually got through and spoke to a consultant. After answering a million questions and explaining what the problem was, I was cut off. I phoned again and a different consultant answered, so I had to repeat the process - answer all the questions and explain the whole story again. Guess what? That's right, I was cut off. I am changing to prepaid forthwith before I lose the will to live.