From the confirmation email you received after your payment was successful, you can download the theme and view your license key.

To install your WordPress theme, follow these steps:

1. Log in to your WordPress admin area.
2. Go to Appearance → Themes.
3. Click Add New at the top of the page.
4. Then click on Upload Theme.
5. Upload the theme .zip file (you can download it from your payment confirmation email—see image above).
6. Click Install Now.
7. After the upload is complete, go to Appearance → Themes.
8. Hover over the theme thumbnail and click Activate.