(1) Chapters 421 to 427 shall be liberally construed and applied to promote their underlying purposes and policies.
(2) The underlying purposes and policies of chs. 421 to 427 are:
(a) To simplify, clarify and modernize the law governing consumer transactions;
(b) To protect customers against unfair, deceptive, false, misleading and unconscionable practices by merchants;
(c) To permit and encourage the development of fair and economically sound consumer practices in consumer transactions; and (d) To coordinate the regulation of consumer credit transactions with the policies of the federal consumer credit protection act.
(3) A reference to a provision of chs. 421 to 427 includes reference to a related rule or order of the administrator adopted under chs. 421 to 427.