We have used mobile hot spot internet from several providers. T-Mobile had good service, but they would make a hidden jump in the middle of the night and you were out of service. Not out of high speed, out of service until you coughed up more money. We had a usage program running at that time and they racked up 5 gigs one night. Nothing showed up on the computer as an update, we were in bed. So don't ASSUME you are being tracked accurately, they have ways of making money. But I bet you will never prove the error is on their end.
