Lack of Service

I have repeatably asked Vodacom to look at the itemised billing that we are sent for our data contract. It used to have the amount of data used per session/day. It has been changed so that no information on the amount of data used is given. It merely tells me that out of say, 21 days we were connected for 21 days. <br> I have sent emails, phoned, and no one even bothers to look at what they are sending (and charging R22 a month )<br> I was told to email srm@vodacom and interactive_ebilling@vodacom who also did not even have the courtesy to reply.<br> If there were any other service provider I would change, but Vodacom is the only one available.