How the hell can Gamestop be sold out of a freakin coupon?

[ducci101]

So here I am ready to redeem some of my powerup points for another coupon, and they say its sold out. Really, a coupon is sold out. How the can a coupon be sold out?

 

[enemyofusall]

it's gamestop, lol. Really I don't know though :/