PSN itself. I'm already logged into PSN and i go to Welcome Back and the free 30 day Playstation Plus. When i hit the "get it" button, it is asking for a password. Again, i've tried all passwords and nothing works.
Interesting. I had no problem signing up for ps+ but when I went in to turnoff the auto-funding, it would not accept my password, and I swear I remember it since it just changed. Did the forgot password and reset and then I was able to change the account setting. Worth a shot?