Why Can't I Mark This Level Complete?

There are a couple of reasons why this might happen:

1. You forgot to mark one of the lessons in the level complete. Go back into each lesson in that level and ensure you've clicked the Mark Complete button.
2. The level has a "More Coming Soon" lesson in it. We use those to prevent you from completing a level because we're planning to add videos to it in the future.

If none of these apply, contact [e-mail] so we can help you investigate.