TWO FREE Oui by Yoplait Yogurts at Walmart After Cash Back Posted On February 22, 2020 Get TWO FREE Oui by Yoplait Yogurts at Walmart After Cash Back! – Through February 23rd, Ibotta is offering a FREE Oui by Yoplait Yogurt after cash back at Walmart ($1.34 value)! This offer has a limit of two so you can get TWO free yogurts after cash back!