my wifes phone says she used 1.4 gb at once 8:11 am this morning. She doesn't stream music or video. How is this possible? We went from having used 2.8 to 4.2 in the blink of an eye. Are there any options here or if they said we used it then we did even if we didn't. I went through browsing history and there is nothing there that would indicate this exorbitant usage.