Unlink peacock from xfinity

I want to subscribe to Peacock Premium Plus, but I'm unable to do so with my Peacock account linked to Xfinity. Peacock informed me that Xfinity needs to handle it since my account is managed through them. Could you please assist me with this?

i have already tried to follow the directions here (https://www.xfinity.com/support/articles/peacock-manage-subscription) but when I do this it states I have no subscriptions.