Order additional licenses
To purchase additional Office 365 licenses for an active plan, log into the Winhost Control Panel, then click Office 365 > Manage (for the applicable subscription).
The plans and total licenses purchased for the domain will be displayed. Click Add license to order additional licenses for an active plan.
Enter the number of additional licenses you wish to purchase into the field provided and Continue to view the Order Summary page to review the order before purchasing.
Review the order and if it is correct click Submit My Order.
Cancel active licenses