Peacock Premium activation failing - requesting entitlement reset

Hi there.

Peacock Premium Plus is included with my plan and I recently paid for the ad-free upgrade on both Peacock and Disney+/Hulu. The Disney+/Hulu ad-free upgrade activated correctly. The Peacock upgrade has not, and I cannot activate Peacock at all. The issue reproduces across browsers, so it appears to be a backend entitlement sync problem rather than anything fixable on my end.

What's happening:

• On xfinity.com/yoursubscriptions, Peacock Premium Plus (ad-free) is listed but has no activation button. Disney+/Hulu Premium (ad-free) on the same page works correctly, shows Active, and has a working "Visit Disney+" button.
• xfinity.com/activate-peacock hangs indefinitely on "This is taking a bit longer than expected, but we're on it" and never proceeds.
• The "Activate now" link from the Entertainment Management page returns: 400 Bad Request - Request Header Or Cookie Too Large.
• The 400 error reproduces in both Firefox and Safari, ruling out local cookie or browser state.

Already tried:

• Clearing cache and cookies for xfinity.com and comcast.com\
• Incognito / private browsing
• Multiple browsers (Firefox, Safari)

Both ad-free upgrades were paid for at the same time. Disney+/Hulu provisioned correctly, Peacock did not, which points to an entitlement-side issue specific to the Peacock product rather than billing.

Requesting an entitlement reset / ECM ticket to refresh Peacock Premium Plus provisioning on my account. Happy to provide account details via DM.

Thanks for your help!