Upgraded phone

[Anonymous]

I have upgraded online to a iPhone X and my sim doesn’t to seem to have registered after 24 hours and I am unable to receive the texts. It is also still appearing on my 02 with my old device.

[Bambino]

@Anonymous Are you using your sim from a previous phone or is it a new sim? If it's a new sim has it been activated? Have you tried switching the phone off and back on again? If that doesn't work, contact Customer Service https://www.o2.co.uk/contactus or if you have an O2 store nearby, you could call in and ask for another sim and they will activate it for you.

[Anonymous]

@Anonymous Call customer service to see if the swap has gone through correctly 

https://www.o2.co.uk/contactus

[Anonymous]

I have had a new nano sim but I was told this sim would cancel out the next one. Thank you for your help

[Bambino]

@Anonymous For security reasons sims are not sent already working. You need to activate it. Take a look at this link:https://www.o2.co.uk/help/phones-sims-and-devices/activating-your-sim

[MI5]

When you upgrade the account details are changed on O2's system and are also transferred to your current sim card. A new blank sim is sent in case you need a different sized one.
For an upgrade, you should put your old sim in your new phone, if it doesn't fit, you need to do a sim swap to transfer the details to your new sim card.
How to sim swap here http://swapmysim.o2.co.uk/

[Martin-O2]

Hey @Anonymous have you managed to activate your sim yet?