From other threads I've read about the codes it seems not all consoles came with codes for PS+, Music Unlimited, etc.
** Engage brain before putting mouth in gear **
MVP Terms and Conditions ________________(=^‥^=)________________ Forum Rules of Conduct
========== SONY Customer Service 800-345-7669 or Link to Live Chat ==========
Just got my PS4 today, and I can not find the code to redeem for the free 30 days of Playstation Plus
its inside a 3 "panel" folded up insert inside the box. mine was right on top of my manual. make sure to check everywhere inside the box, even underneath the cardboard inserts.
if it's not there, it might be because you've gotten ahold of a non-launch ps4. as in, a second+ batch. those inserts/trials were for launch systems. i know it's still within a few months of launch. but it could just of been luck of the draw.
From what I have seen the first wave of launch PS4's had the codes in them that expired early in 2014 which is around now so it would make sense that they are no longer putting codes in the next wave of consoles shipping out. I suggest you do get PS+ though, so many awesome deals and free games.