I finally got the data to work only when needed - Automatic updates are all deactivated. We have on the odd occasion something running / downloading - Afterwards I picked up that it was the Cell C Connector's Auto update.
With Win 7 it doesn't allow any changes to be made, but it still downloads.
I spoke to Cell C, and because it's a VC sim Card, they don't wanna really help (apart from the generic response ("it's Automatic Updates for Windows, sir")
Is there a way to stop these updates (Our Netlimiter trial has expired)?