Expires: 5-31-2021. Voucher instructions are emailed immediately after purchase, and are immediately available at Rocketgrab.com by logging into your account and visiting the “My Account Section”. Rocketgrab Vouchers are not snail-mailed. Promotional Value of this deal is good for one full year. After the expiration date, the paid value will be honored by the business for a minimum of 5 years. No substitutions. No cash value. No substitutions. Valid for use at Green Acres Course.