Credit card transactions can be processed in a variety of different ways. Some gas station machines will as you for your zip code to go along with it, online you have to provide a variety of information. But when you buy a beer at the AAC you don't provide anything, they just swipe the card and that's it. The fact that the Obama web site is asking for the name and zip and all of that doesn't necessarily mean they're sending it to get the approval. It's just for show, and some shoddy record keeping. The card companies do not always require that stuff to give an authorization.
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