Error from preorder code?

Dear customer,

We apologize for the inconvenience, but we noticed an error with the pre-order key that was delivered in your FINAL FANTASY XIV: Heavensward pre-order. Attempting to redeem the code on the pre-order site may have generated an error saying that it had already been redeemed. The issue has since been resolved and a new key has been issued to your Square Enix Online Store account. Please visit the product activation page and login to receive your new key.

I already got the codes saying the preorder is registered to my account and have the codes saved on my pc.. if there was an error wouldent it have not let me get those? I did check my store account and it did issue me new codes. Just wondering if this happened to anyone else. And what should I do to make sure I get the right codes.