A consumer complaint or customer complaint is "an expression of dissatisfaction on a consumer's behalf to a responsible party" (London, 1980). It can also be described in a positive sense as a report from a consumer providing documentation about a problem with a product or service.[2]
Consumer complaints are usually informal complaints directly addressed to a company or public service provider, and most consumers manage to resolve problems with products and services but it sometimes requires persistence. An instrumental complaint is a complaint made to a person or organization that could take some action and bring about a specific remedy. An expressive complaint is a complaint made for the purpose of expressing feelings, without any realistic chance of anything being done. Most online complaints are expressive complaints.[3]