TERRIBLE service but does the City of Joburg care?

There are so many reviews about incorrect billing and bad customer service, with zero resolution. I have been overcharged, I have disputed, written to everyone - my invoice has been altered but I am still overcharged and still receive threatening SMS consistently. I have left reviews on Facebook - I have now reported them for *****! What next ???? - this can't carry on. How can we get together and sort out the incorrect billing issue. COJ won't! Elections are coming up - maybe this will create some action. Any ideas???????