on 06-08-2015 16:31
on 06-08-2015 16:31
06-08-2015 16:36 - edited 06-08-2015 16:36
06-08-2015 16:36 - edited 06-08-2015 16:36
You don't say which data plan you have or which phone, so it's difficult to answer.
Have you downloaded the MyO2 app, which helps you track your usage?
on 06-08-2015 17:02
on 06-08-2015 17:02
on 06-08-2015 17:11
on 06-08-2015 17:11
Sounds very much like an iphone....
on 06-08-2015 18:25
on 06-08-2015 18:51
on 06-08-2015 18:51
on 06-08-2015 18:51
on 06-08-2015 18:51
on 06-08-2015 18:52
on 06-08-2015 18:52
on 06-08-2015 19:05
on 06-08-2015 19:05
on 06-08-2015 19:17
on 06-08-2015 19:17
It's difficult to know what to suggest to be honest. Many iPhones tend to have this problem, not all and it seems, only on O2. Get O2 to investigate and in the meantime turn off mobile/cellular data when you are connected to wifi, turn off autoplay videos in Facebook if you use it.