I have a Cadbury Free Ticket voucher do I need to pre-book? Pre-booking is essential therefore we require all guests to pre-book their tickets to guarantee entry. You can pre-book your ticket through this link. Related articles I have a Carex 50% off entry voucher, how do I pre-book? I have a promotional offer, how do I use this online? I have a Kellogg’s snack pack voucher (e.g Fruit Winders, Rice Krispie Squares), how do I pre-book my ticket? Do I need to pre-book online in advance with my promotional voucher? I have a Sun 2-4-1 voucher how do I pre-book?