Fully Deleting Users from an Organization

Fully Deleting Users from an Organization

For testing I created two free personal accounts, and added them as users to the organization in my real Premium account, before rolling the system out to real users.  Now I'm done testing them and I want to close the test accounts.  I can deactivate them as users in the organization, but not completely remove them.

When I log into the test accounts and attempt to close, I cannot because they are still associated with the Organization.   How can I dis-associate the test users so they revert to personal accounts, so I can then close them?

~Kelly