The Emu Bar advertises that it has a Happy Hour between 6pm and 7pm and that all drinks are half price during that time. Drinks are served at half of the normal prices during that period, but staff are instructed by management to only serve half the usual measure in mixed drinks. Matthew, who really likes his alcohol, notices that the drinks served during the Happy Hour are not as strong. Is the Emu Bar in breach of the law and what legal remedies does Matthew have?