Hey There Matt!
I also feel the same about SGC.... For one, they Back up there product!
(The last I checked...)
Talking with them is only going to make you feel better about what you might view as a loss right now.
The Folks at SGC really are the real deal! I would suggest giving them a call to discuss the cards situation and then send them the card. I'm pretty confident that they will help you out!
A few years back I had a T202 60/5 that I paid 13 or 1400 dollars for, I sent it back for regrading and SGC regraded it a 40/3. They also included a $900.00 Check... and they did it ALL for Free
So if your uP to it, Give'em a Call and Let uS ALL Know of the outcome?