Worst service ever

I can't believe this. I signed a contrqct with telkom, and said i only want it active dor 24 months. They are still debiting my account with overcharged prices. I habe contqcted them multiple times. And every time they switch me through to another department then they don't pick up... I leave messages online on their 'contact us' and it keeps rerouting me back to the page. Then i habe to re input all my details.... Ive done it multiple times still i get nowhere.... They are debiting me and charging me for a line i havent used in months ive been struggling with the cancellation online and even whent into the telkom store in January where they bluntly refused to help me.... I asked the man im struggling to cancel my telkom account and he pulled up his shoulders telling me he cant help me..... Now theres an outatanding amount of 5500 rand frometh december? Where am i supposed to get that kind of money.... Especially if its outstanding because of their negligence to help me.... Today i phoned them again when through all the trouble so they could make me hold the phone while switching me through to a amanager so they can just refuse to answer the phone again.... Im absolutely furious about this.... So now they refuse to cancel my contract because of the outstanding amount but the outstanding amounts theat built up frometh december is their fqult as they have been negligent to help me ive bedn trying constantly to contact them and leave my details