Classes are offered on a pass system, like a virtual punchcard. You can purchase a pass to be used at your convenience. For example, you can purchase a 10 class pass to be used once per week, multiple times per week, or a few times per month until that pass runs out. And then begin again! There is no expiration date on class passes.
Once you have purchased a pass, be sure to book the classes you would like to attend. This ensures that you receive the Zoom link for that class. You can modify your bookings up to 30 minutes before class start.