Certificate must be redeemed in person at The Zone during regular business hours or at the Griffins Box Office which opens 90 minutes prior to game start time. Phone orders will not be accepted. Griffins outdoor game and playoff games excluded. The certificate must be redeemed by the last game of the 2013-2014 season. Please make your game selection at least two (2) weeks in advance to ensure ticket availability. All items listed are based on availability.