I don't know what "promotion" refers to, but generally speaking, using a brand without the authorization of the brand owner constitutes infringement, and the infringer generally bears legal responsibilities such as stopping the infringement and eliminating the influence. As for whether it is necessary to bear the liability for compensation, it depends on the specific infringement, such as whether it causes damage to the brand owner, whether there is illegal income, and whether the brand owner has incurred expenses for stopping the infringement.