SaaSFrame subscriptions are sold on Lemon Squeezy, a secured online selling platform for creators.
You can generate an invoice on your Lemon Squeezy portal once you purchased SaaSFrame. You will find the link in the order confirmation email.
You can cancel your membership subscription at any moment on your profile page.
You can send me an email at antoine[at]unmake[dot]io, I'll be happy to help with any questions.