If you ordered the phone as an upgrade or new deal from o2 you would have been sent a new 5G sim, so you can follow the sim swap process in the guide below:
https://community.o2.co.uk/t5/How-to-Guides/SIM-Swap-a-mini-guide-incl-eSim/ba-p/1060675If you need to get a 5G sim first, you can request one in an o2 store or by calling customer services. There are some different numbers to try in the link below, along with advice on which option to use.
https://community.o2.co.uk/t5/Other-Products-and-Services/Coronavirus-Covid-19-Community-Help-and-Su...
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 Do not publish personal details (email, phone number, bank account).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
