Subscription Model

Develop a 3-teir subscription model using Angular, Typescript, Stripe and Firestore. Users sign up designating their account type as type A or B. If type A, they will pre-pay for a certain number of seats of Type B accounts and receive an admin code to invite Type B users to use the seats. If the admin code is removed from the Type B user account, Type B will be prompted to pay to continue to have access to the platform. Payments are monthly subscriptions through Stripe.