This FAQ will show you how to check the number of licenses out of the available five you have available to use.
Please login to www.outlook.office.com using your abwe email address.
Once logged in click on your account at the top right and click on "My account"
Click on "My installs"
Click on the arrow next to the word "INSTALLS"
Here you can check to see which installs you are still using and deactivate installtions you are no longer using. Click on the word "Deactivate" for each license you want to free up.
If you have any further questions please email IT Support.