we need to find out the ilac which is issue ,law (needed 2law at here) , application and conclusion

a) Yin went to Family Store to purchase a cordless vacuum for his house. He went to the electrical appliances department, the salesman showed to him a few samples from varieties of brand of the cordless vacuum that had been displayed there. He interested of one of the samples showed there from the brand DIMEA and told the salesman. The salesman later gave a box that contain the new cordless vacuum. Yin keep requested the salesman to open the box and check over the goods but the salesman keep insisted that the cordless vacuum in the box was exactly and similar like the one of the samples displayed. When Yin reached home and opened the box, he realised that the cordless vacuum is different from the sample shown in the store. By referring to Sale of Goods Act 1957. advise whether Yin can take legal action towards the salesman in Family Store? (15 marks) Write your answer below: Issue : Whether Yin can take legal action towards the salesman in Family Store