Sorry Legion, but I agree with poker.com on this deal.

I play there A LOT, so I have earned many coupons. The restrictions are set very clearly on their page that details their promotions. They give theses seats away for free, so begging them for another is, forgive the cliche, looking a gift horse in the mouth...

Just go back and get another, it doesnt take but 30-40 minutes anyway...

Please, dont let this experience ruin your feeling with poker.com, they are a great place, and it seems you just misunderstood their terms & conditions, and they followed the rules they set.