If you purchased Deadpool for $59.99, $10 credits were issued out on 6/28/2013. If you did not receive a credit and should have, please contact customer service at 800-345-SONY.
Just wanted to let you know that we are aware of the Deadpool pricing discrepancy that was on our storefront. We have fixed the issue, so the game is now the correct price of $49.99.
If you purchased the game at $59.99 you will receive a $10 credit to your PSN wallet. You can expect an XMB message with more information about your refund later this week.
If you would like to discuss this topic, please do so in this thread: http://community.us.playstation.com/t5/PlayStation