Rockstar is offering 2 cans of Rockstar Energy Drinks for FREE (up to $5) for a limited time. To get this deal, claim your rebate on this site. Head to your participating retailer and purchase 2 Cans of Rockstar energy drinks. 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.