Cannot add a user (Already in another organization)

Cannot add a user (Already in another organization)

We are trying to add j.marrone@purplepass.com to our Zoho Campaign account but it's saying he is already part of another organization.  He tried logging into a campaigns earlier today and it tried to make him setup a new company rather than log into our main campaigns account.  Now when I try to add him as a user within our campaigns account, it says he's already part of another one.

Can you please clear out j.marrone@purplepass.com from any organization.