Thank you for your purchase. We hope you are happy with your purchase. However, if you  have received a defective copy of a book (defective means received in a condition that is torn, soiled, pages missing, pages in wrong order) or a book different than one you have ordered or showing price less than the one shown in site, you may return it to us for a full refund or an exchange of same value as you have spent on that particular order within a period of 15 (Fifteen) days of receipt of the book at your end.