Anyone know how to merge two whole family trees, user profile and all?

I realized recently that I formerly had another Geni account, 6000000181146700849. Try as I might, I can't get into this account, and so I can't merge anything. I have a connection on that account to the World Family Tree, that I don't have on this account. If possible, I'd like to merge the accounts, and if I can't do that I'd at least hope to merge my family members.