Incorrect billing and rudeness from Vodacom!

On 14th Feb 15 I went into Vodacom to apply for my upgrade. I have been on Blackberry service for the past 4 years, with BIS. The agent who assisted me said that my service will be switch off that evening which it did.<br> I did not use my Samsung Galaxy straight away because I wanted to get connected to Wifi at work first, & I also did not have a cover for the phone. So for the NEXT WEEK I used my old iPhone 3 only to make and receive calls, with my other pre-paid Sim card that has another number. <br> Only a week after did I use my Samsung, but kept my mobile data off as I used the Wifi at work. Yet, Vodacom tells me that in 5 days I used R305 of data?!?! I did not even download any apps. I logged a call for it to be investigated & I get this sms: \The data in question was indeed used and the amounts are true and correct for Usage in Feb."I wont accept this esp as my phone was switched off. I emailed to escalations asking for a detailed printout of this so-called data usage and all Marvin Timm does again is email me the exact wording from the sms! They refuse to give me a printout for proof so I can at least see whats going on. This is blatant theft and I want it SORTED! RUDE!!"""