Apple Watch 7 code error 14

[Cm20]

Hello

I’ve purchased an Apple Watch s7 from John Lewis and would like to add it to my current Airplan o2 contract.

I followed the instructions on:

How do I buy an Airtime Plan on an Apple Watch that I already have?

Now, I see the data plan in MyO2, but I get this error when opening the data plan settings on my phone:

Oops, something went wrong. Try again and if the problem continues call 202 for free from your O2 mobile, quoting reference code 14

Customer services could not resolve the issue.

•iData is enabled

•WiFi calling is ON

Looks like a common issue with devices not purchased from O2. Any help is appreciated.

[Breanna]

@Cm20  I'm going to tag one of the account advisors here on the forum to see if they can help.

Morning @O2Lisa would you mind taking a look at this?

[O2Lisa]

Thanks for the tag @Breanna. 

@Cm20 I'll message you privately and look in to this for you. 

[Bearbear]

I am having the same code 14 issue. Any help massively appreciated