Would you be willing to answer a few brief questions about PlayStation Forums?
I put the code in for my psn card and it says would you like the $20 or whatever but when I press yes it says error and doesn't give me the $20
Go to Solution.
Contact Playstation customer support by phone or live chat (https://support.us.playstation.com/app/contact_options). They should be able to figure out what the status of your code is, and why it is not working.