so heres the deal i live in california and recently updated to a 3g. i currently have the basic 70$ plan because really i cant afford otherwise. i barely txt and try to only use wifi. seing as it was my birthday over the weekend my family decided to fly me over to canada where im originally from. wile i was there i tried not to use the phone because i know id have to pay out the ass. we all went on a road trip that was about 5 hours the whole time i hooked up a plug from my iPhone to the car to listen to music. next day i get a call from AT&T telling me that iv had weird activity on my phone. not knowing wtf they are talking about i ask like what. " well it seems you have a 650$ data charge to your account" aparently since my iPhone was plugged into the car it counted as internet use... i still don't understand how that works and im no tech genius. i spent forever on the phone with them. does this seem fair that i now have a 740$ bill?