Hello @Simonpt1 ,
Welcome to the community,
Are you able to try your SIM card in another phone or try someone else’s SIM card in your phone to make sure there is not a problem with either of them?
Another thing to do, is take the SIM card out, give it a wipe and the SIM card slot, reboot your phone to see if any of that solves it.
Check here whether there is a problem where you are, where you can also register and receive updates:
https://coverage.ee.co.uk/coverage/ee
To contact EE customer service dial 150 from your mobile phone or ring customer service for free using Skype or another phone: +44 800 079 8586 or +44 800 956 6000.
