Is is possible to remove or delete a user once they have been invited. Since there is a user limit for the account type, you might want to reclaim a user that is no longer needed.

I’m answering my own question here. It appears that Remove Access on the Users page does remove the user from your account and returns that user to the account user pool.

I guess another option would be to Edit a user and change their username, email and password – to repurpose an existing user.