When I used to be a pilot before uncle Delta threw me on the street, when I made my pilgrimages to maple syrup land, I would always turn off my data roaming... else, the 'ol "iPidimus Maximus' would sync my email, etc about every 5 minutes and I'd owe the 'man' about $100 extra bones at the end of the month. Text wisely and talk briefly grasshopper.

To address your current bill, call Alpha Tango and Tango and complain like a spoiled 12 year old in a toy store and they might credit your account for some of the charges. Threaten to cancel your service if they are not receptive.... you should be able to work that bill down a bit.