Hey Chris,
first of all, thank you for the purchase!
The comments are not showing up on the page because the page template in Sensei does not envisage comments. To enable comments on static pages, please download this custom archive from my repository, unzip it, and upload the contained file into the theme folder («wp-content/themes/Sensei»), replacing the existing file.
Please let me know if it does the trick!
Sincerely,
Andrew / Satori Studio