Huge mobile data usage since upgrade S8

[JohnAscot]

Received upgrade at weekend on Samsung S8. Now receiving multiple msgs regarding high mobile data use...500mb in 2 days! Normally I don't use this in a month. Msg says attributable to email. Dont know what's happened? Ideas? Experienced same?

[MI5]

@JohnAscot data useage can be higher after an update due to processes and apps updating, however, I'm interested to know where the message you get is coming from, is it a system message?

If so, check the email account it is referring to to see if it is stuck in a send receive loop and try force closing the app and then restart your phone.

[JohnAscot]

Thx. I did send email with large attachment on Sunday but presumed had gone through successfully using wifi. That msg now deleted & bin emptied. also just forced stop on email. Yes...system generated msg. But doesn't correspond at all with mobile data o2 say ive used. Confused.

[MI5]

See how it goes now you've cleared it but the O2 usage may take a little more time to catch up.

[Anonymous]

Usage updates within 30 minutes or at midnight so check your myo2 in the morning 

[JohnAscot]

S8 says I've used 500mb in very short time. I have 1gb monthly allowance. O2 says I still have 800mb remaining. I guess o2 is correct.

[MI5]

Yes, I'd follow what your MyO2 says.