After your order has been confirmed you will receive an email welcoming you to the new Thea Render Portal account. Click on the “Accept Invite” link to activate your account.
With the plugin installed, open the “License Setup” window and in the Lease tab, enter your email and password and click on Activate.
SketchUp: Extensions >> Thea Render >> License Setup
Rhino: Thea Render >> License >> License Form
Cinema 4D: Thea Render >> License (select Lease in the License Type drop-down)
If you want to learn more about Lease Licensing, have a look at this article.