Massive Unexplained Data Charges and Bullying

Vodacom has now overcharged me by more than R7000 through false billing. They get away with it by disconnecting my line whenever I query and withhold payment pending resolution. My data usage is consistent throughout the years. Suddenly one day it spiked over 3 Gig i.e. 31 Aug '15. On inquiry they sent a spreadsheet purporting to be my usage - some was but not all. When I pointed this out they refused to engage further or to provide proof that I'm liable for the charges, claiming that ICASA prohibits them from doing so. This continued with false charges over the next months despite me switching over to a blackberry 9900 and had BIS activated - which they charged for. I queried these charges and a person by the name of Given immediately blamed RIM saying they exclude some websites and proceeded with accusing me of visiting those - without any facts. H e totally refused to provide proof. A trusted, concerned citizen inside Vodacom confirms that they are undergoing massive internal changes and that billing overcharges are ongoing and rife. Call centre agents cannot resolve billing errors - either willingly or by order of management. In the interim the ******* continues unabated.