Turns out Google assigned the primary user as the other individual on
the Home. The person that has never set up or bought any of the devices.
Using their account, I was able to unenroll. Also, I used the "Call"
option in the Contact Us link and that...
I'm having this same exact issue. There is no one else that would be the
primary user. I have no idea how I wouldn't be the primary user, either.
Also, I never signed up for this.