Bill is the owner of Best IT shop in Lowyat Plaza. His business was moving slow due to the economic recession and competitive market. Therefore, he organised a clearance sale as a marking strategy to increase profits. Bill advertised "Simsong Galaxy Tablet for RM300 per unit" in the official Facebook page of Best IT, which was a reduction of 70% from the original price of RM1,000.Melissa quickly rushed to Best IT and took the tablet to the payment counter. However, Melissa was shocked when Bill told her that the price has increased to RM500.

Melissa refused to buy the table at that price and she seeks your advice whether Bill is bound to sell the table at the advertised price of RM300.