Network is not available

[Oleg]

Hi i have problem with network
Or my sim card doesn’t work

[Oleg]

Can i order new sim ?

[adamtemp64]

@Oleg  Try this https://community.o2.co.uk/t5/How-to-Guides/Self-help-guide-Is-the-network-down-for-me-or-everyone/b...

 follow all the steps etc

[MI5]

@Oleg 

You'll need to call customer service.
Numbers here Guide: Coronavirus Community Help and Support 
When it comes to the reason you are calling stay silent for 15 seconds and you will be taken to the keypad options.
Press 2 for Everything Else
Press 5 for More Options
Press 7 for Anything Else which will put you though to someone.
Say "Upgrade", "Lost/Stolen" or "Fraud" if you have to, to get put through to someone.
8.00am is the best time to call if you can.