Board Thread:Club Penguin/@comment-25253547-20150131130444/@comment-4018164-20150131131730

Well, limited edition refers to how many units are manufactured or distributed, and not to how long the code may be used. They can, however, give an expiration date for codes, but since these are membership codes that people have actually paid for, it's unlikely, but even if they do so, they owe these people a refund.