on 11-06-2020 13:54
on 11-06-2020 13:59
on 11-06-2020 13:59
@Brighteyes74 You can carry on using your old sim or swap it. The swap system has had problems of late, so you should stick with the old sim for now. If you're in a 5G area and it's up and running you can try to swap, but if you're not, I suggest you wait until things settle back down.
https://community.o2.co.uk/t5/How-to-Guides/SIM-Swap-a-mini-guide/ba-p/1060675