vodacom customers be warned

on 27 August I bought 1 Gig data for my vodacom ****le. yesterday (27 August) it said I had run out of data. point of note: I didnt download anything nor watch anything online. I didnt even go on facebook. I sent a few emails and read a few webpages. I was online maybe 2 hours in total if that. Usually 1 Gig lasts me a month and that's with me downloading a few podcasts etc. I phoned customer care and the lady I spoke to was clueless. she spoke to her supervisor who said I must have programs running in the background. I dont tho and even my virus protection doesnt update till I tell it to. This is the second time this has happened to me this year...R300 lost! And to think this week I was going to sign a 24month contract for internet and switch my cell to vodacom also. You need to know this and be very careful. I dont know how you can protect yourself from this happening to you. If it does you have no recourse and can say goodbye to your money and your data. don't make mistake I did tho - dont wait till you have lost R300.