iPhone data over usage?

[Anonymous]

Hi All

I've just had a text message from 02 saying I've used all my monthly data usage.  I'm not sure if this is an 02 issue or maybe an iphone issue, but I can see that every other night at midnight I use huge data amounts, when I'm not actually using my phone.  Does anyone have any ideas what I'm/or the phone is doing?

Thanks

[jonsie · Accepted solution]

The data is used over the whole day, midnight is when the O2 system updates to record the data used.

Turn off notifications and use wifi whenever possible. Check other settings such as information automatically being sent to Apple.

[Anonymous]

Thanks for that!  I'll give it a try, although I hadn't actually changed any settings or notifications anyway.  

[Anonymous]

Only use mobile data if you are out & about