Help setting up classes behind a member area

Hello! 

I am designing a website for a client who is offering online classes through Zoom. They would like the classes to be offered within a member area.  It would be free to be a member, however there will be three different options within the member area for paying for the classes:

1. One Session
2. 10-Session Package (to provide a discount)
3. Unlimited Monthly Class Membership

In the scheduling menu I have set up both the 10-Session Package as well as the Unlimited Monthly class membership, however I'm not seeing (or understanding) where or how a student would actually use the package or the subscription to pay for the classes when they are booking in the calendar. Am I missing something. The workflow on this seems very clunky. 

Thank you for your expertise!!! xo