No reponse

I took out a data contract with Cell C 2 months ago on the 15 of September 2015. I phoned them the next day 16 of September 2015 to place a cap on my account for R50-00. They confirmed with me that it is done so I started using my internet. One week before the end of September my daily data of 5 gig was all used up and my use was stopped. The next month of October within the first two weeks again my account was stopped because according to them my daily use of 5 gig was used up. When I opened my Cell C account to see if this was true I saw a bill of R2800-00. Ever since the middle of October I phoned 084 140 which is their contact number to help me in regard with this account. Everyday I am told that they will phone me back. Which they until today never did. Eventually I was given a reference no for this case. I was told that they will credit me for this account. They went ahead at end of October to deduct this amount from my bank account which of course I reversed. At 09 November I again phoned and they gave me a settlement amount of R845-00 which I paid and closed this account. Now they give me two days to settle my account or I will be handed over