Where do I spent 'gift cards'?

[LuciaRiley]

I have one for..uh.. "Casper Gift Card" for visiting these guys: http://maps.secondlife.com/secondlife/Litas/180/73/23 Says to spend it at a 'Casper Gift Card' vender.. I also noticed you can't spend more than one at a time..?

[Amethyst Jetaime]

A gift card is only good in the store where it came from.  If you know which store that is, go there to spend it.  If you don't, ask the person who gave it to you. 

Some gift cards can be rezzed in world and cllicked for a notecard or landmark explaining where you can spend it, how to use it, and a landmark to the shop.