Cancellation of contract due to no reception

After complaining about bad or no cellular reception in Barberton, I was left with no choice as to cancell my contract with Cell C. I had to pay R500 cancellation fee, and forfeit R158 in airtime that I could not use. I gave the local Cell C proof of payment,but a further R428 was deducted from my account, which I reversed. I am now constantly receiving calls regarding this amount said to be outstanding. Because Cell C admitted that I did not have reception, I feel entitled to a refund of the R500, plus airtime, and I do not want to receive any further calls regarding outstanding fees, or be under threat of being handed over for recovery. <br> <br> I feel strongly that Cell C has not treated me fairly, as the problem was with Cell C not being able to deliver the service that I contracted for. Had this not been the case, I would not have had to cancell the contract. I am also sending a demand for refund and ceasing of phone calls, to customer services at Cell C