I have a promotional voucher, how can I pre-book? Please visit https://www.thorpepark.com/tickets-passes/promotional-discounts/ for advice on how to redeem any valid promotional offer. Related articles I have a Kellogg's Cereal pack, how do I pre-book my ticket? How do I redeem my Merlin Pass Share The Fun vouchers? Is the free ticket celebrating Thorpe Park Resort Birthday real? Do you accept high street gift vouchers?