I thought I heard rumors of of AT&T rigging data, but I'm not sure. I've been at work all day, on WiFi, and I somehow racked up over 10% data used on my 3GB AT&T plan. It sent me a text this morning saying I'd used 90% and I thought that wasn't unsually because I'd been using it more than usual this month. I ignored it because I'm on WiFi all day, and I'm getting my AIO sim tomorrow, so what ever. I just got a text saying I'm over 100%... I haven't even been doing anything on my phone (I have my surface here, using that too). But in a 30 minute window, I used almost 350MB.... I don't understand.