Easyday store cheating customers by misinformation of discounted products

Today while buying cashew nut displayed near sale counter I found lot use before 21/4 /12, when I brought in notice of salesman he offered 50% discount, for more information about products and discount I contacted announcements counter girl there called some executive for my queries. One executive told no discount. Other who was incharge of food section offered 25% discount. This reveals that cheat is played by executives or there is no authority for one policy. Customers are deprived off from the benefits of discounted products with malafide intention. Had I missed to see expiry I would have looted with expired cashew nuts at full price.