O2

I assume I can’t add an apple watch cellular to my pay as you go account? If not does am I able to add it to sim only accounts or can you only add them to pay monthly?

just got a new payg sim with "free £10 credit" advertised all over it. I topped up £10 for the first time today and activated the sim, but when I tried to claim this reward it says "This offer isn't for you. we have other rewards you can look at bla ...