So I wake up this morning to find out that my iPad has used roughly seven gigs of data while I was sleep. Now I know that I should have turned off the cellular data, but I thought that when wifi is enabled it uses wifi first? Called Verizon nothing they can do about overages, and their response was that I left an app open that pulled data while the device was off. I questioned this and was told "its just like your phone it can still receive voicemails while off, your iPad can still pull data while turned off." Is this right? Seven gigs in two hours seems like a lot.