VODACOM CHARGES FOR DATA NOT USED

I have been trying since April 2015 to resolve a query where Vodacom charged me R8900 for data used on a internet device that I did not use. I have been transferred and referred to 4 different departments. last week I phoned the head office and spoke to a member of the CO's office. I was told by the customer liason that I am a ****. Then asked to speak to someone else. Got transferred to a lady, Gibraltar. She would phone me back. Still waiting for reply. And Vodacom it threatening with legal action for the past 3 months.<br> How do I get in contact with a director of Vodacom?<br> Leonie Frylinck