Dispicable, incompetence in handling cases

Unfortunately for Londani she is the last one I am speaking to but this is relating each and every agent prior to talking to her. Since my phone was ****** in June round the 5th, they started off by doing a number change (R250) rather than a sim swap. To correct this they said they would have to do another number change (R250) and then a sim swap (R150). Since this was not my error, I am obviously not willing to pay. I requested from them to block the ****** sim and since I received a bill for almost R900 I presume they also neglected to do so. Since then called in 8 times, promised every time I would receive a call back, yet no calls? The previous lady said she would personally phone me back, no surprise she did not. The biggest problem is that they are not willing to take ownership of the problem and have absolutely no problem solving capabilities. Due to this I tried to cancel my contract and also still waiting for a call from the retentions dept to tell me how to go about doing this. <br> <br> It seems CellC buys contracts out from other providers and then provides absolutely no support and also does not allow you to cancel when you are unhappy, thus locking you in forever!! CompCom?