unable to cancel cellphone contract

I took out a telkom mix contract 48 months ago. I have been trying without luck to cancel the contract but everyone I have spoken to refuses to take ownership and sends me to the next department. I have even sent an email for cancellation without any joy. When I call the call centre I am referred to the shop and when I go into the branch they insist I should do it at the call centre. I once held on for an hour in the branch and still did not get through. My service has been suspended several times and a new service I requested is being delayed. I constantly end up paying the shortfall on my account just so that my line can be in operation but I have found that with Telkom, from the teller at the counter, right up to the supervisors and managers their customers don't mean anything. As long as you pay they don't care. There is absolutely no compassion for their customers or respect for customer service. This is an organisation were the standards of customer service and respect for their jobs is no existent. It is appalling that we have to accept this and no matter, who you call it doesn't get any better....Telkom service is the pits