So I've got an iPhone 5s that I've been using with Afrihost Mobile data (on an MTN contract) for the past couple of months. Everything has been fine since September/October when I first signed up, but since 1 March I've been seeing some very strange data usage according to the Afrihost Clientzone (see: http://i57.tinypic.com/2i0wtva.jpg). The data usage app I have on my iPhone that has up till now been almost 100% accurate states that I've used just over 500MB, but according to the Clientzone I've used 4GB's. I've mailed Afrihost but for some reason it shows I have no active support tickets. Anyway, has anyone here ever experienced something similar?