and got shorted three cold one cavalry >_< grrr Got an extra Temple Guard champion though. Might turn it into a scar veteran. I'm slightly annoyed
You can contact GW and let them know. They will make it right. You will need the box that the batallion came in (some codes on the box).
As a matter of fact, my older brother had some similar issues with 40k speeders and he got 7 new ones while KEEPING the ones with small defects on them. I strongly suggest that you follow Arli's idea, you MIGHT get a new battalion for free while keeping the one you already have.