Purchase a American Muscle Single or a V8 Vegan and get an American Muscle Single or V8 Vegan for FREE. Second burger will be of lesser or equal value. Offer can be redeemed in-store, by showing this email on your mobile device, printed out, or via online ordering by adding both items to your cart and entering the code RADIOMATES. Offer not available at BurgerFuel Cambridge. One voucher code offer can be used per person, per visit and per online order. Offer is valid until COB 26/05/2022, or while stocks last. BurgerFuel reserve the right to discontinue this offer at any time.