per https://support.box.com/hc/en-us/articles/360044193393-Admin-Transfer-Protocol-for-Departed-Admins, I need an "admin password reset link."  The admin on our account has left our organization; I am a co-admin, but need to be the main admin so I can disable that admin's access.   I have the info needed (again, per the link above) to request the link, including the invoice number, date and amount, and check number.  

BUT: I don't see where I go to request the link.  I just keep getting sent to this forum.  What is my next step?