Help me out for this

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 Lid in Sydney to look at their 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 action(s) can be taken against Lounge Palace Ltd. Discuss fully the claims he may have under contract law and under consumer law