This evening I was strolling through the iTunes Store and accidentally hit purchase of a audio book that I didn't want to buy. It down loaded it and I didn't want to purchase it. How do I cancel it and get credit for the purchase?
iPad, Hit the purchase button by accident
You can try the 'report a problem' page to contact iTunes Support and see if they will credit or refund you : http://reportaproblem.apple.com
If the 'report a problem' link doesn't work then you can try contacting iTunes support via this page : http://www.apple.com/support/itunes/contact/- click on Contact iTunes Store Support on the right-hand side of the page, then Purchases, Billing & Redemption
How do I cancel a iTunes audio book I accidentally purchased?
