The Financial Ombudsman Service (FOS) is operationally independent of Government.
Information about the number of cases lodged with the FOS and the number of complaints about FOS' service is included in the FOS' Annual Review which is available on the FOS' website.
http://www.financial-ombudsman.org.uk/publications/ar09/ar09.pdf
The Financial Ombudsman Service was not established until 1 December 2001.