Data Usage from "Deleted Account"

[Windows Central Question]

Hi there,
I own a Lumia 650 for about a month and have a problem with high data usage. Last month it ate through my 2 GB mobile plan. Data usage in System shows "deleted account" and "system" as big users. I had to change the email-address from my microsoft account - perhaps thats the culprit?

I already did a hard reset, turned off auto backups and message sync...

Any suggestions highly appreciated!
thx sas

 

[SuperCoolske]

I too have seen that on my phone, did you manage to fix that?