Incorrect billing and no response

I have a Cell C contract via Autopage and with the contract I have 1GB of data available.<br> Currenlty I have only used 435MB but I am already charged for R266.07. I have a ticket number 561879 that is not being dealt with and I phone every month speaking to another person that cannot solve my problem<br> There are large sizes of once off date usage recorded on my bill but during this time I can proof that I am not even touching my phone. <br> <br> As I am typing now I am on the line with Autopage and guess what, now they can only see 500MB of data on my account.<br> <br> This is really unacceptable and I have been with Autopage for longer than 10years<br> <br>