Nancy is in her final year at university . In order to graduate in November , she must submit her final folio of work to her supervisor by October. Nancy takes her work to Casey to be professionally bound . She explains to Casey the importance* of having the work completed by 1 October , and Casey assures her that this can be done . The binding process is delayed due to technical issues and the bound folio is not delivered to Nancy until late October . As a result , she is unable to graduate until February . Her parents then have to cancel their flight from Perth to Melbourne and lose a deposit of $500 . Nancy telephones Casey and tells him that he has ruined her life and that he owes her parents $500 for their lost deposit . Advise Casey of his liabilities . Refer to relevant cases