Why can't I link Xfinity account to Peacock account?

I have Xfinity TV Only with Digital Starter service and based on messaging from Xfinity, Peacock Premium should be bundled into my service at no additional cost.

I followed the instructions and set up a Profile at Peacock but when I tried to link my Xfinity account, I received the message "Sorry, your Xfinity service doesn’t include Peacock Premium".

I even double-checked which Xfinity services are eligible for free Peacock Premium service, and the FAQs clearly list one of the services as Xfinity TV Digital Starter or above. I don't have Xfinity Internet, but that isn't listed as a requirement for Digital Starter accessed through a third party.

Current customers have Peacock Premium (a $4.99 value) bundled at no additional cost if you have:

• Xfinity TV service and Xfinity Internet
• Xfinity Flex with your Xfinity Internet
• Xfinity TV-only (Digital Starter tier and above) on third-party devices such as mobile phones, tablets and PCs
• Xfinity Internet-only with Flex
  • Add a Flex device to your account at no additional cost to start using the app.

Can anyone confirm whether or not Xfinity TV-only with Digital Starter service really is eligible, and if it is, what needs to be done to fix the error? Thanks.