To redeem your pre-order bonuses, simply go to joyofmissingout.com and click "Bonuses" in the top right navigation. The page will automatically take you to information on the three bonuses. If you scroll down a bit further, you will notice a form called 3 Simple Steps to Claim Your Bonuses. After you've pre-ordered your book, simply fill out the form with your receipt number (do not include hyphens) and submit! You should then receive an email within 48 hours with details about your bonuses.
For info on how long it will take to receive your bonuses, read this article.