Skyfi Internet Bad service review

Skyfi has the most terrible service ever. We have ha problems with them since we joined, every week we had to phone to get our services reseted to use the internet again, our last month we had no internet, gave a months notice, and got billed for two months, was reffered to management, 3 months later and we still get billed monthly and threatend to pay. I told them as soon as management sorted us out, we will pay them up to now never sorted and still get billed