To earn a free workout, you need to stay in the 7 Month Challenge (workout everyday for 7 minutes) for 2 consecutive calendar months. For example, if you started the challenge on February 14, your first free workout will be unlocked around April 14. If you’ve noticed that it didn’t, continue the challenge for a couple more days to see if anything changes.
At this point, if you notice that you’re still missing a workout, please make sure you have a Seven profile and send your username to support. We’d be happy to help you solve the problem.