Hi
MrHinsh,
I do apologize for not being able to answer your concern in a timely manner. Let me help you cancel your service in Windows Live Admin Center.
To cancel your service in Windows Live Admin Center, you need to perform the following steps:
1. Sign in to Windows Live Admin Center by using your administrator Windows Live ID.
2. Under "Your domains", click the appropriate domain.
3. In the navigation pane, click Domain Settings.
4. Click Cancel Service, and then click Yes.
I just want to inform you that when your service is canceled, Microsoft accounts are maintained so that users can still sign in to all other Microsoft services. However, Hotmail/Outlook.com subscriptions will be canceled. This includes any existing Hotmail
Plus/Ad-free Outlook.com subscriptions.
If you have other concern or clarification, don't hesitate to inform us and we'll be happy to assist you.
Thanks!