"Your Xfinity account is already linked to another Peacock account."

I'm having trouble activating the Peacock subscription included with my Xfinity home internet. I previously had Xfinity internet with included Peacock from August 2024 to June 2025. I just restarted Xfinity internet at a new address in July 2025. Now, when I try to activate Peacock, it says "Your Xfinity account is already linked to another Peacock account." When I try to unlink my old Xfinity account (from my old address) from my online account, I get stuck on verifying my mobile number - I never actually receive the code to my phone number.