There is a new bug in the Verizon usage app that is affecting some. From the few cases I have seen, including close relatives, the app is switching MB to GB in error. So a 25 MB of usage would show 25 GB of usage and a large percentage over data. I am awaiting Verizon to officially confirm this error and fix the web site. I suspect this will not be done over the 4th of July holiday weekend.