Gosh Ren, the things I do for you....
I had to go open national and check the contract number! And, yes you used the correct # and as long as you entered it into the contract id box, you did it right
As long as I was in there, I went ahead and checked one more time for my April trip.
FB contract ID $266.xx (total cost)
No code or coupon $242.xx (total cost)
Emerald Club $206.xx (total cost)
Sorry it did not work for you, but heck, worth a shot right. You might want to keep checking them all though, things change.
Just goes to show, one "deal" for someone is not always a "deal for someone else."