[quote name='admiralvic']A LOT of the subway items, and some of the KZ 3 map packs have this "this code has been used the max time" error. Or thats what many are saying, so they might not have ever been valid.[/QUOTE]
It also should be noted that in some cases (like with some of the Killzone Retro Map Packs), the code says the " used the max time" message, only when you redeem in online.
If you redeem the same code on your PS3, it works.
For example. The Shick Killzone Map codes, the ones that included a theme could be redeemed online and it said it gave you a theme and a map pack. But the ones that only had the maps, said that the codes were used the max amount of times if you redeemed them online, yet you could use the same code just fine on the PS3.
Not saying that every code that gives that message still works, just that people need to also try the codes on their PS3 just in case.