I am sorry to hear this.
What you described is a classic example of false advertising
Haw. Rev. Stat. § 708-871
(1) A person commits the offense of false advertising if, in connection with the promotion of the sale of property or services, the person knowingly or recklessly makes or causes to be made a false or misleading statement in any advertisement addressed to the public or to a substantial number of persons.
(2) "Misleading statement" includes an offer to sell property or services if the offeror does not intend to sell or provide the advertised property or services:
(a) At the price equal to or lower than the price offered; or
(b) In a quantity sufficient to meet the reasonably- expected public demand, unless quantity is specifically stated in the advertisement; or
(c) At all.
(3) False advertising is a misdemeanor.
Haw. Rev. Stat. § 480-2
(a) Unfair methods of competition and unfair or deceptive acts or practices in the conduct of any trade or commerce are unlawful.
(b) In construing this section, the courts and the office of consumer protection shall give due consideration to the rules, regulations, and decisions of the Federal Trade Commission and the federal courts interpreting section 5(a)(1) of the Federal Trade Commission Act (15 U.S.C. 45(a)(1)), as from time to time amended.
(c) No showing that the proceeding or suit would be in the public interest (as these terms are interpreted under section 5(b) of the Federal Trade Commission Act) is necessary in any action brought under this section.
(d) No person other than a consumer, the attorney general or the director of the office of consumer protection may bring an action based upon unfair or deceptive acts or practices declared unlawful by this section.
(e) Any person may bring an action based on unfair methods of competition declared unlawful by this section.
You can get a free consultation from some of the consumer protection attorneys listed by location athttp://lawyers.findlaw.com/lawyer/practicestate/Consumer-Protection/Hawaii
Please follow up on this with a local attorney.
I hope this information is helpful.