My (Australian) phone provider, Telechoice, is claiming that my 3G iPhone 4s has used almost 1.5GB of data in 27 minutes. Is that actually possible? What's the max throughput on a 3G iPhone? I'm especially skeptical because the time that they think I used this data, I was at home with my wifi network. I'm 100% confident that my wifi didn't drop out for a whole 27 minutes at the same time that my phone randomly decided to use 1.5GB of data (when that's more than I'd usually use in a month). My own phone history shows that I updated one small app and visited 2-3 website all day. That's all. Can you think of a rational explanation for all this? Thanks in advance.