Bill issue not resolved

This is the third time I am lodging a complaint on a similar problem with Autopage.<br> I have been billed R7000 for data used on an APP that was running for 3 days according to Autopage.<br> I received my itemized bill that shows calls made and messages sent and all records seems to be correct. However, my data usage does not make sense. I have communicated with a lady named Jess Cassim at head office and she has tried her utmost in assisting me but she is getting no answers from her IT department. It has been 3 weeks since I have lodged this query and still have no answer. My concern, how can they bill me that amount but can't after 3 weeks provide me with a breakdown of how this data was accumulated. It concerns me that if this is happening to me, surely something like this is happening to others nationally as well. The answer I got from them is that the SIM card used is responsible for the payment due. If that is the case, then why am I not getting the breakdown as requested. I have been blocked as a result as I have refused to make payment because I have not been given what was requested. I have been a loyal customer, but will cancel contract if not resolved today. I've had enough