If you don't click "Skip the Month" by the 5th, Fabletics bills your $69.95 monthly membership fee between the 6th and 12th, and that month's VIP Credit lands in your account. Fabletics never ships products automatically. You can use that VIP Credit anytime in the next 12 months.
Pro tip: set a reminder for the 1st of each month to check the new collection and decide whether to skip.