I've experienced the exact same thing and had the exact same thoughts. When we are all of a sudden being told we are over our limit with 8 days left was shocking, as it was totally not in line or anywhere consistent with our past usage. After paying $75 in overage fees, the very next month we went over our 12GB limit with 14 days remaining!!?? And to top it all off, our Internet Provider (Frontier) lost it's internet connection with us, and we have to wait 3 weeks before a technician can come out to get our internet back. Three weeks with no internet, having to use data at almost $15 fee a day..... Totally unrealistic/inconsistent with our past usage history. Things that makes you go hmmmmmm.