Tell HN: Audible app used 19.8GB of data while not being used

Seriously, Audible used nearly 20GB of data in a day, while not being used. I listened to a downloaded book in the morning. Left my phone on my desk. Picked it up later to find warnings from my phone company about data usage. The phones usage monitor says it was Audible. Of course they don't care. Won't even raise a bug report!