Data going down when phone not being used
I have noticed odd occasions when my data seems to go down more than expected so I started to track my usage. Last night, just before I went to sleep, the ID app showed I had 41.2gb left on my allowance. When I woke up, first thing I checked was allowance which now showed 40.6gb. As I said, I went to sleep, so I didn’t use anything that takes data. My phone is on low data mode and the hotspot is off. How is the data going down like that?