Refunds may be processed in store at the SDSU Bookstore or shipped back to us at shopaztecs.com Refunds, SDSU Bookstore, San Diego State University San Diego, CA 92182-1701. Clothing and gifts are refundable within 30 days of purchase (clothing must be in non-worn condition). Textbook refunds are generally accepted through the first week of the fall and spring semesters and within two days of purchase at the beginning of each summer term (please call 619-594-7525 for specific return policy each semester). The following items are not refundable: Custom imprinted clothing or gifts, gift cards, Montezuma Publishing custom textbooks, textbooks with shrink wrap that are opened (usually including software), and clickers. eTextbooks are refundable under certain conditions.