All data gone overnight

[McDark]

Something strange happened overnight. I got a text from EE at 2:19am telling me I'd used 80% of my data. Then at 3:23am, all my data is gone. All this while I'm asleep in bed.

I have an iPhone with OS fully up to date. WiFi is available for any background data use. I do not use any auto backup services. Nothing has changed on this phone for weeks.

I am on EE PAYG with a weekly talk pack and many year's worth of boosts up to 1.3 gb a week. I'm a light user with barely a fraction of that used in a typical week. It renews on Sundays.

So all this said, it is bizarre that all this data would just disappear overnight.

I have looked at the battery usage stats on the iPhone, and overnight shows a typical low power use. Nothing out of the ordinary running. Just the usual periodic auto-checking of email. Certainly nothing that would explain any untypical background data usage.

So could this be something amiss at EE's end?

[Morag7S]

I've had it happen twice also. I thought I was overdoing the family tree stuff! The person in my local EE shop told me to phone 150 as it's free without actively listening when I said I was a PAYG customer, it's not free, it's 25p per minute. I had to buy more data in the end as my phone is the only source of Internet in my house. Its ridiculous when you can see there obviously is a problem but not accepting responsibility or accountability is poor show on EEs part. 

[Kirigaya_Kazuto]

If you're on iOS - make sure you don't have 'Wifi Assist' turned on, as it'll jump over to mobile data if the wifi connection is weak