Home / Uncategorized / Coupon For Buy One Get One Free Jamba Juice!!!Coupon For Buy One Get One Free Jamba Juice!!! Uncategorized 0 shares Pin It Share It Tweet It Email It Jamba Juice is celebrating their 20th anniversary with a great coupon for us!! How sweet are they?? Go HERE to print your coupon for buy one get one free. This coupon is valid from 4/12 to 4/25. Thanks, My Frugal Adventures!!