As a team supervisor, you can manage license requests.

To access them, click on your avatar and then on “Manage my team”.

In the “users” tab, then “requests”, you'll find the license requests.

Click on the “3 dots” menu at the end of the line to access the various account editing options.

By clicking on “Go Pro”, the user will automatically be granted a license.

Their account status will change from Free to Pro.

To find out more about managing your team, consult this resource: Manage my team (Administration console)