I have a promotional offer, how do I use this online? 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 promotional voucher, how can I pre-book? I have a Cadbury's free ticket voucher, how do I pre-book? I have a Kellogg’s snack pack voucher (e.g Fruit Winders, Rice Krispie Squares), how do I pre-book my ticket? I have some unused tickets left over from my visit, can I use them another time? What age can children visit on their own?