Poor service to the community but they want us to pay.

I am owner of Flat in Tambotie building in Sunnyside. Tshwane cut my electricity base on estimation although I have submitted the readings but there not captured. I have gone to their offices to lodge a query, then they reconnect the electricity after that they charged me reconnection fee, I asked them to remove the reconnection fee on my account, they tell me its not possible but on their reason to reconnection the electricity is that over estimated on readings. Now I want to make a payment they don't want to reverse the reconnection fee so that I can pay what I m owing. Their estimation are very high, I don't understand why they don't estimate on average. Now I have lodge a query on e-Tshwane but even now no one ever responded to me.