I got the Limited Edition from Blockbusters (UK) and the codes for Radnet, Bio Bomb Butt Kicker and the Vehicle Armour worked fine but the code for the PS Home Blackwatch Pilot Uniform kept saying that the code is either wrong or has expired. --- Call me Psycho Santa..... I only beat the naughty ones!
Mine downloaded fine when I put the code in. Though I didn't realize it was a skin for Home at the time; I don't actually play Home ^^' so I don't know if it works in the game (or social network or whatever they consider it) but it did download from PSN without problem.
My other codes worked fine, but yeah the PS Home black watch code says code invalid. Also activision in their infinite wisdom don't appear to want to let you contact support, and their sign up page for a support account is broken. Or at least it is in firefox, chrome and IE.
Easy the code was supposed to be e-mailed to you. I read on the official PS3 boards people talking about an expiration date or something. The date stamp was early March. I don't try to be funny it's just a natural phenomenon. --- "What do you mean he escaped?" *CLINK* "Nevermind good job recruit!"