Impossible data usage - no response from Autopage

In January 2015 I received a very large bill for data which was definitely not my data usage. It was or a Vodacom data ****le which I have on contract with Autopage. I phoned the Autopage service department and was requested to send a Vodacom URL report request and a copy of my id. I sent it the same day. I was never contacted as promised so made another call. This time I was requested to send a letter and id giving permission to MTN and Autopage (my cellphone is MTN) to investigate. This was sent on the 20th of February 2015.<br> In the meantime I continued paying based on previous 12 months' invoices. My phone was blocked, I phoned again. Got a speech Autopage 'family' etc. When I called again, my phone was unblocked (explain that?!)I have subsequently phoned and mailed the support desk numerous times, but no answers for me. <br> Now my phone was soft-locked again this week. Today I received a letter of demand. Shelley at the service department gave me the number of Jeanette Strydom who's apparently dealing with my account. Not sure if she exists though because I have tried calling 10 times today and and the phone just rings. <br> This is so unacceptable!!!! Will someone please assist me?1