Error message 10 when activating the e sim on my apple watch ultra

[Nickmb]

Hi

I have completed a hard reset on my apple watch ultra.

when activating the esim data plan the following error message comes up.

reference code 10

202 help desk have been unable to assist so far 

some advice on fixing would be appreciated

[Enlli]

All the information we have here on the Community 

Activate Apple Watch Guide 

[Cleoriff]

Repeated question:

@Nickmbasked and answered HERE on the guide.