Day to day people change their shopping styles. In the olden days, everyone goes to the stores and purchases items without any offers and deals. Not only that offline shopping is more burdens for many of the people to waste their money and time but online shopping simple and we can access anywhere and search a lot of products with differnt styles and types also. Nowadays people mostly addicted to offers and cashback deals. Without those offers and discounts, they are not intrested to purchase items. So that is the main reason for many of the stores giving discounts and vouchers to the customers to develop their business.