Last month Saint Laurent executives requested that Colette stop selling the Saint Laurent-parody shirts online. Owner Sarah Andelman complied but continued selling remaining stock on the floor at rue St.-Honoré where they quickly sold out. That’s when on Sept. 25 Francesca Bellettini, the chief executive of Saint Laurent, reportedly informed Andelman that the company would cease all business with Colette, something that had started in 1998 and quickly became one of the store’s best-selling collections.