Mark, I hope you can help. I'm in a similar sutuation.
I started with $20 premium monthly and saw the charge on my CC.
When I realized I needed a Premium Yearly, I upgraded the account. Settings * Admin * Billing shows the account status as Yearly Premium, but my credit card wasn't charged.
As a result, the transfer process is stuck.
YG has firstname.lastname@example.org as a moderator, but Easy Setup says, "We have accepted the invite to your group. If you have not already, make email@example.com a moderator of your group. Once you have done that, tell us when you are ready to transfer your group."