Customer complaints are generally casual complaints straight addressed to a company or public service provider, and mainly consumers manage to resolve problems with products and services in this way, but it sometimes requires diligence. This article listed some of the most common customer complaints that might occur in your establishment: Sloppy Wait staff, Poor Attitude, Dirty Dirt, Slow Delivery of Guest Check, Irritating Noises, Over Service, Invisible Employees, Out of Supplies or Items on the Menus, Undercooked and Improperly Prepared Foods etc.