Go to account settings, transactions management, then go to add funds (:
Tried that with a Playstation Plus card, it didn't work. And now it's telling me the code is incorrect or invalid.
An error has occurred FIX!!!!
I too was having the same problem!!! I tried everything everyone on the forum had and no success.... I tried one last thing and it worked! I logged off the PSN and tuned off the password at checkout AND after a reboot of the system I went to Account management---->Transaction Management------> Add funds------> enter Account Password----->entered PSN code and the transaction was a success!! Hope this helps you guys out.....
Yea i'm having the same thing i'm trying to put my new codes i bought for Assasins Creed BlackFlags, but sadly no code is working it keep getting error has occured!
I hope sony fixes this it's not letting me add friends, I can't put codes in my ps store, and it won't let me see the people who sent me a friend request.... :/
I hope sony fixes this problem that's happening.