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