Incorrect billing : and nobody can assist

I was billed R6119 for data use in December 2014. My average monthly data bill is never more than about R400.<br> On going through the data billing detail printout supp**** by Autopage, here are clearly glaring errors of incorrect billing and times that I never used any data. Anybody can see at a glance that the out of bundle billing is not correct and that billing and no billing occur hapharzardly. I have called numerous times to get resolution and the standard way is to simply drop the call after each consultant is unable to escalate the query.<br> <br> This has to be the worst service and escalation resolution I have experienced in my life & I have a sinking feeling that Autopage do this in the hope that they can bolster revenue, because the clients have no way of getting resolution. The debit order ensures they can bill what they like.