I just created new Google adWords manager account for being able to obtain adWords API access. For clarity purpose let's assume that the email associated with this account is email@example.com.
After I created MCC I invited newly created manager from my initial (not manager's) account referred as let's say firstname.lastname@example.org - this invitation appeared on my page:
However I don't see any invitations in my manager's account:
In the manager's inbox email@example.com appeared an email regarding the invitation with a link to confirm. If I use the link provided I'm getting unexpected page asking me if I'd like to use any present account or to create a new one (which is weird). If I try to put manager's email (firstname.lastname@example.org) in the box below I will get this:
So it looks like Google tries me to create new account which I don't need actually as I already have two: regular (email@example.com) and manager's (firstname.lastname@example.org).
Any thoughts why the invitation not working?