I'm also getting a message saying the promo code redemption system is down on LS.
Edit:
I Just tried it again as of 1/25/2009 11:10 am MST.
it's still saying it's down on Lake Superior.
I tried submitting a question about it both to ea.com customer support and to an in game GM. The in game GM gave me a canned response that told me to go look at uohearald.com/news. There is no news posted about the promo code server being down at all on uohearald.com. The response from ea.com customer support told me to email their support staff with all my account info and the promo code I purchased to get help with it, which is pointless if the shard isn't talking to the promo code server. Typical.