I was billed for a purchase on steam that was declined?

[Jack]

I attempted to buy the Age of Empires II HD and Age of Empires the Forgotten Package for $29.99 with a $50 VISA Gift Card that I bought and activated online yesterday on the gaming website Steam.

I made sure the information matched up with the information I registered the card under, but it said the purchase was declined. However, when I went to check my balance on the card, it was down to $15.73. My VISA site lists a charge for $34.27 from STEAM Games, but STEAM Games said the purchase was declined and I didn't get the game.

So I was charged off the VISA Gift Card, but I did not receive any purchase.

What should I do? I'm out $34 and I have no game. This is my first time using Steam and I don't know what to do.