Unexplainable usage during odd hours at night, yet no one seems to know what, why or how to stop the problem. Most prevalent in I-phones. Just pay up for overages, say goodbye to any underused data and don't ask questions. Am I the only customer who is becoming extremely tired of this situation? I personally have an Samsung Galaxy Note II and do not have these issues, however, both my wife and daughter have I-phones and it cannot be stopped.