Can I buy my ticket online using a promotional voucher? Please check the Terms and Conditions of your voucher. Unfortunately, unless stated otherwise, physical promotional vouchers can only be redeemed on the day. Related articles How do I redeem my Kellogg's Grown Ups Go Free offer ? Is my Promotional Voucher valid? Do you offer a discount for pregnant women, or those that do not wish to use the rides? Do I receive a discount when booking online? Can I buy a 2 day ticket?