Booktopia is fast becoming the local bookstore for all Australians. Booktopia ships over 1,000,000 books, DVDs, CDs, maps, eBooks and calendars a year to Australian people, businesses, schools, libraries, universities etc. You earn 3.5% as a New Customer and 1.75% as a Existing Customer based on the Net Sales Amount. Coupons: Please only use coupons that have been provided by YourChange to ensure your transaction generates commission. Gift Certificates and Magazines: Gift Certificates or Magazine purchases are not eligible for commission.