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					Originally Posted by uncle_el
					
				 
				as an aside, once at wal-mart i was asked to give my zip code.  in response, i gave some fake zip code.  at that point, my credit card was declined!  i guess since my "fake zip code" didn't match the one for the credit card, it was declined.  it only happened that one time, but i suppose some stores actually do it to verify the credit card.  :shrug: 
			
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Occasionally a store will do a check for a credit card. I remember reading on a gas pump once that it might ask me for the zip code on the billing address for the credit card in order to help confirm rightful use of the card, I guess it's mostly just done at random, but I bet it can be triggered too, like say your a sixteen year old guy using your mom's card to pay for gas and it's pretty obvious  your names not "Shirley", I think that maybe the clerk inside could signal the question.
Now, back to the topic at hand, yes it's annoying, but it's not a big deal, just say no, give them a bad number or just don't shop there, there are too many other important things in life to get mad at, don't waste your anger.