Bad service

I upgraded my cellphone approx 2 months ago, this was done telephonically, I received my first bill which was R1630.28, I queried this as my bill in all the years I have been with cell has never been more than R350, I was informed that a recording would have been made of the conversation with me and the consultant when I did my upgrade, I queried for the first time on the 19 October 2015 concerning this matter and have queried it everyday ever since (proof can be provided). I was told that they are urgently working on my problem and would get back to me before the debit order date the 25 October, this did not happen and I paid R450 of the bill. I also ask that the new bill for November would have the same problem as October and was also told this would be sorted. Today I received my November Bill which is R1760 plus the R1188 that I am according to Cell c in arrears of the previous month. I have asked on many occasions to hear the recording where cell c says the consultant told me that my limit will be R15000 and asked me if I would like to limit my limit. as I do not recall this part of the conversation. They responded by saying they will sort this out, I am still waiting