on 17-07-2013 10:34
on 17-07-2013 10:34
on 17-07-2013 10:45
on 17-07-2013 10:45
on 17-07-2013 10:46
Difficult to say without more details to be honest.
Try texting ACTIVE to 2020 and save the settings.
Also check your postcode for local issues O2 Service Status and remove and clean your simcard, reboot the phone.
on 18-07-2013 00:46
on 18-07-2013 00:46
I'm sure you can do better than that for an explanation?
If you want help you must be prepared to help yourself a bit!