Transferred number to o2 - iMessage won’t work

[RossCummings]

Just got a new sim only deal, iMessage won’t activate along with FaceTime. Voicemail won’t allow me to set a greeting. O2 priority won’t send me a code either. Is this just a wait 24 hour thing or is there an issue as ringing 202 seems impossible to get in touch with anyone, all automated and eventually just says goodbye and hangs up. Help!

[Cleoriff]

@RossCummings 

Is iData enabled on your account?

You can contact O2 using any of the numbers in this guide Guide: Coronavirus Community Help and Support 

0800 587 4005 is currently the best one to try.

[RossCummings]

I would presume so. Visual voicemail works and internet data works, just can’t use iMessage FaceTime, set a voicemail greeting or set up wifi calling. It won’t send me a text when I go to the my details tab either so I’m presuming I need to call them tomorrow

[gmarkj]

Have you updated the number on the phone?
It is something like
Settings>My phone>My number