I tried entering different letters on my ps3 system to see if this was valid and it came come with error code 80023156. It would be greatly appreciated if someone would tell me what the missing letter is.
Did someone use HCH3-KDLF-EMLE-X9YJ for the Mass effect 2 Cerberus pack? I tried to redeem it and it showed that it had already been redeemed. Just wanted to know, thanks!