Is my voucher valid? Each voucher is subject to terms and conditions. Please ensure you check the terms and conditions of the corresponding voucher for validity information prior to arrival at the Resort. Related articles I have received complimentary tickets - How do I use these? How do I redeem my McDonald's Happy Meal voucher? How do I redeem my voucher or discount? How do I redeem my Tesco Clubcard Points? Do you offer Gift Vouchers for admission into LEGOLAND Windsor Resort?