No calls, texts or data (outside of WiFi) @Liz19
You might have a sim card failure.
See if any of these helps:
Guide: How can I sort out my network issues?
Guide: Is the network down for me or everyone?
Other things - are all your bills up to date? Have you tried your sim in another phone? Or another sim in your phone?
If all else fails, you can get a new sim card by visiting your local o2 store (take photo ID) or by calling customer services on 0344 809 0202 or 0800 081 0255 - and you can call the second for free using Skype ( Guide: A Guide to Skype ).
Using customer services will mean the new sim is posted out to you, so it might take a few days to arrive.
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 Do not publish personal details (email, phone number, bank account).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
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