Visitors gather at a booth of L'Oreal Group during an expo in Shanghai.Cosmetics giant L'Oreal Group offered compensation and issued apologies to customers following a sales dispute related to a Nov 11 promotion, highlighting the intricate dynamics between brands and livestreaming hosts in China's ultra-competitive retail landscape, industry experts said. L'Oreal Paris, a mass market skincare brand under the French company, stirred a public outcry after two influential Chi...