This site lists the ombudsmen and other complaint-handling bodies who may be able to help you, if you have a complaint.
Ombudsmen are an independent and impartial means of resolving certain disputes outside the courts.
They cover various public and private bodies and look into matters after a complaint has been made to the relevant body.
BIOA membership is open to ombudsmen from the United Kingdom (England, Wales, Scotland and Northern Ireland) and the Republic of Ireland.