Peacock Premium - can't activate it, receiving error PPG_0017

My Xfinity account includes Peacock Premium at no charge, but it shows "Activation required". When I try to activate it, I recieve an error PPG_0017 saying my Xfinity account is already linked to another Peacock account. I only have one email address.   

There is no "Help & more info" or unlink option in my Subscription Hub. Can you please escalate this to your technical support team to investigate the existing Peacock account linnk and reset the entitlement if necessary? I need the old connection cleared so I can activate my included subscription. Please advise.