How do I redeem my GNC discount? Mary Updated February 05, 2019 22:46 Follow • Private Online Store: Shop our private GNC online store in Members Only. Your Veterans Advantage discount is pre-loaded. Related articles How do I redeem my Target.com discount? How do I redeem my Apple discount? How do I redeem discounts with TicketsNow? Why do I pay for Veterans Advantage? How do I redeem my gym membership discount? Comments 0 comments Please sign in to leave a comment.