Unknown Data Usage

[LCKC]

I put my phone on airplane mode every night before I go to bed. But there are plenty of mysterious data usage every 3 or 4 days in the middle of the night like 4am. 

Some data are like 41.55 MB .....

Need resolution ASAP

[softech]

@LCKC 

 PM does not update the data usage constantly.  In fact, it only update it twice a day.  So, any entry you see is just a total usage between that timestamp and the timestamp of the previous entry.  So, your morning usage use see does not mean it was used in the morning but a total usage for the last 12 hours.

Also, for correct usage reading, always use Incognito mode to login My Account to avoid reading cached old info

[dust2dust]

The timestamps are not useful.

Here is one day of my usage. I looked at the time when I turned on data twice. Around 9am pacific and around 4pm. The smaller number is the earlier usage.

[BKNS27]

@LCKC 

PM update your usage twice a day. Middle of the night and midday.