The exam closes again except for its free part, and everything you did stays in your account.
A pass runs for the week, month or three months you chose: from the moment you pay, or, bought while another runs, from when that one ends. Unless you ticked renewal, nothing is charged when it ends.
Your answers, your scores and your plan stay in your account. The free part of the exam stays open to you: the free chapters of the book, the first lessons and first podcast episode where the exam has them, and one full mock exam. A new pass picks up where you left off.
A pass also ends if its payment is refunded or reversed, and when you delete your account.