Newegg is offering a pre-order discount on Ratchet & Clank: All 4 One with the promotional code: EMCYTZT780
http://www.newegg.com/Product/Product.aspx?SID=u570785t3347460f9fp0dd0c0s701&AID=10440897&PID=1225267&Item=N82E16879261269&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-cables-_-na-_-na
So what's the deal with the redemption codes not working? The Killzone pack has been around forever so it shouldn't need to wait for the PSN store to update.