Same issue for us. One line (which is a jetpack) blew through our entire month of data in an hour!  We'd made no changes in usage.  In a typical month we were barely using our 4GB.  I don't want to b... Ver más...
Same issue for us. One line (which is a jetpack) blew through our entire month of data in an hour!  We'd made no changes in usage.  In a typical month we were barely using our 4GB.  I don't want to be synical either, but amazingly there was a special promotion available to double our data for an increase of $10 a month.