No problem. In most cases, there is a very easy solution for this.
All of our Sometimes Yagoy, Try Yagoy, and Promotional passes activate with the first reservation.
If you are having trouble booking a class, check to see if you have a future reservation that is activating your product. Then, you can cancel that reservation, book the earlier class, and you should be all set.
All passes have an expiration date. Please check the duration of you pass under the Pricing tab. You can activate any Sometimes Yagoy pass within one year of purchase. You will then have a set duration to use the remaining credits.