Cell C is useless

Cell C has never so poor before, yoh! Poor coverage, poor voice quality. I hate using Cell C. It goes from full bars to no bars at all while standing at same position. Cell C made a wrong move by switching off their towers. Now my 2 data SIM cards say "not registered" after using them more than a year and guess what, I'm still paying for the same contracts that I don't receive services. Why sell Network services when you don't have your own network. ****ed off