Located in front of the checkout was reams of multi purpose paper with a sign buy and receive $3 rebate. I made the purchase and sent in the paper work for the rebate. Within a week I received a post card from Staples stating that I had not purchased within the time limit of the offer. How could it be that my purchase was outside of the expiration date being that the slip to request the rebate was attached to the sales slip? Gary McMichael w