I'm with AT&T and on their 2GB plan. My data usage is mostly some light browsing, Facebook, email and streaming radio 2/3 times a week (for about an hour each time). That being said, I monitor my data usage very carefully. So this month like usual, as soon as I got to 2020MB (which was about 3 days before my billing cycle ended), I turned off cellular data on my phone. The next day, I dialed *3282# (which is AT&T's text service for data usage) and got a text back saying I had used 2067MB all of a sudden. Thinking this was a glitch and that I would get it resolved once my bill was out, I let it go. A couple hours later (with data still off), I found that it went up to 2080MB. What's going on here? Has anybody else faced this?