MYBAR is offering 3 of their protein bars for FREE after rebate for a limited time. To get this deal, claim your rebate on this site. Head to your local GNC and purchase a any 3 MYBAR protein bars. It’s easy to submit your rebate by snapping a picture of your receipt. Rebates are paid out almost instantly upon approval via PayPal or Venmo. Offer is limited to 1 offer per user or while supplies last.