I placed an order at OnTheHub but received no license key for Parallels Desktop application.
You can track your order status, including the product keys and activation codes at OnTheHub website in the Your Account/Orders section of WebStore following the instructions below:
Log in to your school WebStore.
Click on the Your Account/Orders link at the top of the page.
Scroll down to the Order History section and click on the View Details link.
It should display the purchased product key or the activation code.
For more information, please contact OnTheHub Support.