Adding data to my bundle

I received sms from vodacom stating that im in arrears with my account.... It is impossible.. I have phoned them and asked them what it was about... They said that 3 gig data bundles was added to my account.. I have a flexi 200 top up.. i never requested such a thing.. Today my account was blocked.. I phoned them and they said that i have to pay the arrears amount, because it was my fault that it was in arrears.... I asked the lady why they say its my fault and she said cause i dit not pay.. I pay my account every single month... I'm still waiting for the outcome for the complaint that i laid on the 10th of April.. Ref nr *** nr ***.<br> <br> I want it solve.. I want to know who added the services that i have not requested.... I get 200 airtime every month and with that i ad data to my account.... the lady also said that they have tried to phone me. so i asked her what nr they used and she said the nr in question... I told her that i have gave them alternative nr.. *** and she just said i must wait for the outcome..