Jamba Juice: BOGO 50% OFF August 28, 2014 By: Tricie share Be sure visit Jamba Juice during the BUY ONE FRESHLY SQUEEZED JUICE OR SMOOTHIE AND GET ONE FREE! Event. Show or print the coupon below to the cashier. OFFER ENDS 9/1/14 Please be advised that this post may contain affiliate links. See my Disclosure Policy for details.