Hello and welcome to the Playstation Forums. We aren't Sony employees but we'll do our best to assist you. Don't just disappear when your issue is solved. Someone may need your help some day or maybe you'd just like to socialize in our Off Topic or Home forums.
Unfortunately noone here can give you a new code but I can point you in the right direction to get the help you need. You have to contact Customer Support. Use the link in my signature or the "Contact Us" link at the bottom of this page. You'll probably have to provide pictures of the code and your receipt. Good Luck and post back results please.