Your Xfinity account is already linked to another Peacock account.

Hi there, @user_j48no! I am glad you are continuing your service with us and happy to further help with Peacock. There is some great stuff to watch! This link shows the steps to activate and watch Peacock, https://www.xfinity.com/support/articles/peacock-premium-offers. 

If you forget the email the subscription is linked to you can unlink it. 

1. Go to the StreamStore through xfinity.com/yoursubscriptions.
2. Click Help & more info ( some customers see it toward the bottom of the page).
3. If you see it, click Unlink Peacock account. 
4. When you unlink the email address, you would then go through the activation steps to link a different email address to the subscription. 

Please let me know if you are able to unlink the email address and activate with a new email address, or if you need further assistance.