Product Registration

Hello, today I received a notification to change the password of my account psn for security measures. While, I type in my username and old password (as requested), but he later aks for the date of birth, I presented during the creation of the accoun

How can I register my product without using the online process?

I'm unable to get the registration code for my Blu - Ray player. I followed the instructions and all I get is the statement: device is registered. I can't register for the most part without a valid code. Please let me know how I can get the correct c