Apple Watch upgrade

[Benlfc]

Anyone know why when I'm clicking on upgrading my watch it is saying I am eligible to upgrade so long as I'm happy to pay the remainder of my device plan however it doesn't show me any devices to upgrade to, I have recently upgraded the mobile phone for the number that is linked to the watch only yesterday is this the problem? Confusing because when I attempt to upgrade the rest of my devices including the number I've only just upgraded it displays devices 

[MI5 · Accepted solution]

@Benlfc 

You need to contact O2.
All numbers are in this guide Guide: Coronavirus Community Help and Support 
Or 202 from your O2 mobile.
Advice from an O2 Guru to get through:
When you call 202, you will be asked for the reason you are calling.
Stay silent for 15 seconds and you will be taken to the keypad options.
Press 2 for Everything Else
Press 5 for More Options
Press 7 for Anything Else which will put you though to someone.

Or you can upgrade in store.