I have a Kellogg’s snack pack voucher (e.g Fruit Winders, Rice Krispie Squares), how do I pre-book my ticket? To pre-book your Grown Ups Go Free ticket (i.e. buy one child ticket get one free adult ticket) click here. To pre-book your Mates Go Free ticket (i.e. buy one adult ticket get one adult ticket) click here. Related articles How do I redeem my Kellogg's Cereal Pack Grown Ups/Mates Go Free voucher? I have a promotional offer, how do I use this online? Can I contact you via Live Chat? Do I need to book online in advance if I have a promotional voucher? Is my promotional voucher valid?