Phia, the shopping app co-founded by Bill Gates' daughter Phoebe, earned commissions on sales it didn't generate, Bloomberg reported. The app, which helps users find lowest-priced items across retailers, allegedly engaged in "cookie stuffing", overriding other affiliates' referral codes and inserting its own to earn commissions. Phia is backed by stars like Khloé Kardashian and Hailey Bieber.