I too have lost my off network data. We go to Northern Maine twice a year for vacation. Where we stay there is no landline phone or internet. A cell is a must. I had issues with my trucks transmission and was doing some searching online. Unknowingly using excessive data according to AT&T. They shut me off. In doing so, shutting off data also effects some text messages (Pics and imessage), intertnet obviously, and maps. I was unable to get directions to a place we wanted to go as I had no interenet to look up the phone number or map it out. We have been very loyal to AT&T for aproximately 7 years.
I called customer service during our last vaca and was told flat out the only way I will get data is to switch cell companies. Apparently they would rather lose payments from two phones monthly, years of income, over an overage of data.
What really gets us, are all the months I have never even come close to using the data I pay for. I normally do not even use half of the data I normally pay for. They are making loads of $$ off me. Yet, I use off network and I get dropped because I used too much? I think 7 years of never going over my payed for amount should apply.
After our phones are payed off, I'm seriously considering Verizon as they own the towers in the location and have towers here in southern Maine.