Useless service

Completely useless customer care - They are the SP for my fibre to the home Internet connection. I have been having problems for the past 24 hours. I called this morning to find out what was happening and was told it was a Metrofibre issue - I called Metrofibre who didn't even know there was an issue. So this afternoon I called Cell C again. It took four different people (all in the wrong department) before I was finally told that support for fibre was "not available". What is worse is they have messed up my billing for almost the past year, and they simply do not respond to my emails asking for clarity on the issue. I have sent several emails and they simply get ignored and the incorrect billing continues.