i did not authorize a purch
I did not authorize a purchase of an application but had been billed, how can I reverse this payment?
Purchases are considered final as you know, but you could try the 'report a problem' page to contact iTunes Support and see if they will refund you as a one-off : http://reportaproblem.apple.com
Or you can try contacting iTunes Support via : http://www.apple.com/support/itunes/ww