I have unlimited data and my wife has 200mb. I have been using around 1.25gb to 2gb a month over the last year but got a text this morning that I reached 3gb and throttling would kick in with a week left in the billing cycle. My wife usually uses close to the 200mb but is at 370mb with a week left in the billing cycle. I havent noticed any difference my our usage personally. only thing I could guess is the limited time the kids use our phones but most of the time it is in our house through wifi. Could the kids usage be causing the huge data increase?