SIM card not working

[RM20]

My SIM card is not working, I have tried taking out and restarting phone. I have no service etc. 

[jonsie]

We’re just customers like you but it sounds like you’ll need someone to access your account which can’t be done from here. If you message O2 using the links below, they should be able to help you with this
or give them a call on 202  or 0344 809 0202

[TallTrees]

Hi @RM20 

You can discuss issues here

Guide: How to find help & contact O2 

[Oxonian]

@RM20 

Have you tried your SIM in a different 'phone ; or a different SIM, maybe from another network, in your 'phone ? That will help to narrow down whether it is a SIM issue, a handset problem or a network matter. 

If you need a new SIM, a visit to your local O2 retail store, with photographic ID, is the easiest way to do a SIM swap :-

Store locator | O2 UK | Find Your Nearest O2 Store

https://stores.o2.co.uk/