This is Australian Law, please solve this for me.

Question 3: (16 marks) Mark had just moved into a one-bedroom apartment in Sydney He needed to buy a lounge. He went to Lounge Palace Lidin Sydney to look at the stock. He liked a lounge that was on display, so he bought it The lounge was delivered However, Mark was disappointed to see that the lounge delivered was not dark blue, as was the one in the shop he had chosen Mark seeks your advice on what actions) can be taken against Lounge Palace Lid Discuss fully the claims he may have under contract law and under consumer low