Were your friends on o2 as well or just you @Davey66 ?
Did you get the phone from o2, and did it come with a new sim? Are you using that or are you using the old one?
You could try a new sim to see if that helps, and see if any instructions in the guides below help.
Guide: How can I sort out my network issues?
Guide: Is the network down for me or everyone?
Please note, this is not customer services and we cannot access your account. Do not publish personal details (email, phone number, bank account).
Link to our guide on how to contact them can be found here
