@Matt17
Have you tried your sim in a different phone? And see if you get the same problem?
It might be you need a new sim card, best and quickest way is to pop to an o2 store with photo ID and get them to do a sim swap..
If you cant get to a store then you will need to call o2 and wait for one to be delivered to you (it may be after christmas as takes 5 to 7 working days to arrive).
O2 can be contacted on 0344 809 0202 from another phone
Also look at these guides Guide: How can I sort out my network issues? Guide: Is the network down for me or everyone?
- Xperia 1V - o2 and Spusu
- Pixel 8 Pro - o2 and Vodafone UK
