I bet you both have Iphones or Apple products. They had a large updates lately. If you send me an email with your MAC Address found on the bottom of the modem or the phone number associated with your account, I will do a data analysis for you and email it back. You would be amazed at all the little things you don't think about that eats up your data.
I am an Elite Dealer and a member of the Dealer Advisory Council to ViaSat. I am here to help!
Hello Hopeful, I'd be glad to review your account details and check your usage categories to pinpoint where your data is being consumed. A couple unknown data consumptions lately have been storage and updates. The number of devices on your home network also plays a major role with usage as well. Please send your account and contact info to firstname.lastname@example.org. Thank you