MrFishGuy - 1:14 am on Feb 13, 2009 (gmt 0)

I ordered a computer from Amazon and they first charged my credit card $1. Then they charged the rest of the amount of my order. I got a call from my credit card of a suspicious charge and they verified my last like 8 charges.

I understand that Amazon charged my card the $1 to put all that in motion to make sure the card isn't stolen, but how does that help them?

My credit card company isn't going to contact them and advise Amazon that we spoke and everything is cool, so what information does charging my card the $1 first give them that charging the whole amount doesn't?