The DESTY bundle includes 5 passes. These passes will expire once your mentor package subscription expires which is a year from when you registered for your training.
Any additional passes purchased on top of the 5 already included in your bundle are activated once you add a student to them and can be renewed after 12 months, once you have an active subscription to the system. You can reset each pass once during the year, which means you can remove one student's data to use the pass with another student. However, the pass still expires 12 months from when it was first activated.
Please reach out to training@educationdesty.com if you have any questions.