Hi, I hope someone can answer my query. I have an iPhone 5 and wish to tether on three network without them knowing I am doing this. My contract with them has a 2gb tether limit but unlimited data. My phone is on ios 7.1.2 and I haven't jailbroken a phone for a few years since it became harder to get apps the unconventional way . Does anyone have a set-up on Three network doing this?