Just got a new (first ever if you can believe it) phone today. It's the very basic unlimited text / pictures pre paid plan. I didn't choose to pay for a data "booster" so is it possible for the phone to use data and all of a sudden at the end of the month I have a surprise bill? Without me knowingly doing something that might use data. In the data usage settings it has supposedly already used 105kb since I first turned it on about an hour ago.