Terible Service and being given the run around

I had the absolute displeasure of having to cancel a contract due to the fact that Cell C cut coverage in my area, when they realised the issue a month later they then said I need to return my router which I did, the issue started with the fact that the router was issued incorrectly and displays as still in their stock on the system, I have been billed 2 months in a row for internet i did not get, while they knew full well of the issue. When you Go to Cell C Hemingways store you are made to feel as if this is not their isssue and is rather your problem. I will never recommend Cell C in any way shape or form