If this is a kid... I really suggest he give up... Sony is not a free place. And there are millions of children AND adults alike who hopelessly scrub for codes when they need it.
If you have a computer you actually have a chance, free to play games and quick time freebies on Indiegala, 1 dollar bundle games and a bunch of stuff like that. You have a vita too... So that really kills your free to play chances too.
Best option I have is to hold over with a couple of lengthy demos or something. Psn codes are probably the least likely to be seen or exist. It sucks but it is true.
Go ask your friends... If you have any.
I'm locking this.
Ocassionally forum members will give away codes they aren't using or Home give codes but this isn't a thread about that. If you have free trial codes you would like to give away feel free to start another thread. Thanks.