Incompetence-CANCEL MY CONTRACT

I have 2 contracts with Cell C and I have been trying to get them cancelled for as long as I can remember and I have come to a point where I am sick and tired of this network and the incompetence of its staff. I contacted CellC on the 01 July and I was told that I need to cancel on the 01st. of Aug. I visited the store in Baywest Mall and completed a cancellation form and I was told of a 30 day notice and penalty that was going to be charged. Interesting because when I contacted cell c to cancel, I was told to call on the 1 of Aug & when I did that, I was told I was suppose to give 30days notice???after all that, I assumed all was in order. I then called Cell C again to confirm as I had nothing that confirmed that this was done, to my surprise, nobody new about the cancellation. I was then transferred and I did the whole cancellation process again. this was 2 days ago. I called today again to check and guess what, NOT CANCELLED & had to redo it AGAIN. NOW I ASK THAT MY CONTRACT BE CANCELLED AS I DON'T EVER WANT TO DEAL WITH CELL C. The last lady that I spoke to by the name of Busi in your call centre, eventually hung up on me when I asked for confirmation of the cancellation!!!