Hey there,
with the registration, you receive a coupon for two of the courses. 21-day program itself is not a course, but within this program you get access to two free courses (using the provided coupons). So, please, make sure you are logged in to your account, go to courses and purchase the courses advised in the 21-day program using the provided coupons.
Enjoy and if you have any further questions, please, don’t hesitate to ask.