Data plan being used even when its OFF

[profyler]

I have the weirdest problem on my device

My data plan is always set to be disable (off). I only use wifi, and never use data plan
Even so, i receive a message every day for my carrier saying they have discounted $ from my plan because i used data plan. I should receive this message only those days that i use the data plan conection.

How the **bleep** is an app or android or some system activating my data plan even if its set off ??

Can android or a third party app activate data plan? I guess not.

Does stamina change this somehow?

This immediately started the day i bought myself the Z1c. Didnt have this on my moto g or optimus hd.

i have no idea else.. i tried everything.

When i go to the screen that shows the apps that used data, its complete blank with 0,00Bytes used.

as i said, this didnt happen with my previous phones, so im pretty much sure that is something with the z1c.

any help is apreciated.

[profyler]

@alexdon

ok , so everything that safe mode does, is deactivate all third party apps? Cool, will try it too and post results.

[_alexdon_]

Yes,in safe mode only default apps load.See if something changes.Keep us updated.

[i123]

Same problem here I have xperia z1 and xperia z3 both the phone keep on using data inspite of being data off

[Neethi]

This problem has been around for 2 years? Shame on Sony