@Spoon
If you want to use 5G then you will need to request a new sim card, which you can do by contacting customer services or popping into your local o2 store with ID and they can sort out there and then.
If you dont care about 5G then just use your old sim card.
This is not customer services and we dont have access to your account
I do not work for o2 or any VMo2 /Telefonica/Liberty Global Company
