Several major publishers were sued in a class action by the Attorneys General of a number of states due to collusion resulting in price fixing. The court has approved a settlement granting refunds to buyers of ebooks from those publishers. Amazon is sending notifications to purchasers of qualifying ebooks that two other publishers have now joined the settlement, which should result in bigger refunds for its customers.According to the Amazon notification, customers dont need to do anything to qualify for or receive the refund. The court will conduct a hearing on December 6 of this year to approve or reject the two new pubishers joining the settlement. If approved, Amazon customers should expect an estimated $0.73 to $3.06 for every qualifying ebook purchased between April 1, 2010 and May 21, 2012. The refund can be used to purchase ebooks or print books. In lieu of a credit to the Amazon account a paper check can be requested as detailed in the Amazon notification.The publishers joining in the settlement are Hachette, HarperCollins, Simon & Schuster, Penguin and Macmillan. The refunds are being paid out of a $162.25 million pool the publishers have established for the refunds.