strange app in cellular settings using data, can't delete, not shown in device apps
I discovered an app using data in the cellular settings for my iPhone 12 Pro Max.
The app shows no settings and is not listed in Device apps or the App Store. The app has on/off settings only for cellular data. I reset my iPhone and restored from a backup but of course that did not remove this device/app whatever it is. How can I remove the app off of the iPhone. Do I need a new SIM card? What would a new SIM card accomplish?
I no longer have a back up of the iPhone prior to the appearance of this app. So I can only reset the iPhone but not selectively restore data. I also have the iCloud turned off for the last couple of weeks and moved a lot of data out of it. I am also getting a lot of errors when I try to reset or restore the device. I've worked around those, but ultimately only got the phone back to where it was when I back it up a few hours ago. How do you clean out apps from Cellular that are not present on the device but show up in cellular data use screen where you can turn on or off if a device has access to cell data?
iPhone 12 Pro Max