Amex is just flukey in the way they handle credit limits. I have stellar credit and had a couple of Amexes closed on me out of the blue, due to "negative information" from Experian ..which I could never find. I think most of it has to do with extremely limiting their exposure during a recession and the rest is b.s. After arguing forever ..I just said the hell with it ..and put in a new application and was approved with crazy high credit limits (This was for the DL Reserve Card). Wth knows how they do this stuff.