Can I cancel my Merlin Membership before the end of the initial 12 month commitment? Merlin Memberships may not be cancelled during the first 12 months. Related articles How do I cancel my Merlin Membership? What happens after the first 12 month commitment for a Merlin Membership? I have a Merlin Membership, what happens if I miss a payment? Can I use my Merlin Membership immediately after purchase? How can I purchase Friends and Family tickets?