CitiBusiness AAdvantage World MasterCard
Had an interesting experience applying for the Business card recently. Applied on Dec 2 using one of the links in the wiki (I don't remember which one), and got a denial response stating something to the effect that they are unable to offer me this card and I would get a letter explaining the reason(s). Then last evening, I got an email informing me that I was approved for the CitiBusiness® / AAdvantage® Platinum Select World MasterCard®! The email also stated "For your records, please note your account was opened on 12/2/2015 and your new card has a credit line of $20,000."