complaint

A complaint is an expression of dissatisfaction or concern about a product, service, or experience. It can be made by an individual or group when they feel that their rights have been violated or when something did not meet their expectations. Complaints can be directed to businesses, organizations, or authorities, and aim to seek a resolution, such as a refund, correction, or improvement. In many cases, they serve as a way for companies to understand customer issues and improve their offerings. Complaints can also be formal, through written letters or online forms, or informal, shared verbally.