Over billing for data contract

I have two data contracts with Vodacom. One capped and the other not. My data usage for the uncapped data contract has shot up to R878 (October 2015) and over R1000 (November 2015). The uncapped data contract is for R109 per month, imagine my surprise with these latest bills!! I will request an itemized report to get to the bottom of this. I check the Vodacom app, which clearly indicates data available, every time I use the internet at home. I still had plenty of MBs left and NEVER went beyond the 3GB contract during November!<br> <br> I have now placed a limit on the uncapped data account to see whether this will protect me from a repeat of this nonsense.<br> <br> If another bill like this is received, I will simply end my 20 year relationship and go elsewhere. Once bitten, twice shy.<br>