Phase one: Verify Domain - You are in control of the webex account for your domain.Claim Users - You control the users under the account chosen for your domain.Claim Domain - No one else can create an account using this domain name.Site linking- If o...

There should be an option under the user's account to either unlock them or remove the account.

Use cases are the most helpful to me.  You can learn from previous experience to build better going forward.