Wednesday 28 October 2009 9.46am
Ofgem (the regulatory body for Gas and Electricity suppliers - although no longer consumers, that's gone to Consumer Direct
) has a good, if brief factsheet at http://www.ofgem.gov.uk/Consumers/Documents1/whattodowhenapproached.pdf
The important thing is never to sign anything if you aren't sure - even if they say it's only an inquiry form. If you think you have signed something you didn't mean to then contact your current supplier(s) immediately.
Under the catch-ily titled Cancellation of Contracts made in a Consumer's Home or Place of Work etc. Regulations 2008
you are entitled to a "cooling-off" period of 7 days for any goods or services costing more than £35 bought at the door.