That's marvelous. This from my analysis on the forum seems to happen for accounts over 6 months old, and gets shut down on newer accounts after the 1st increase..
I just gor my letter from Comenity today declining me for an increase after I got one for $300 saying they just gave me an increase. To the shredder it went.
I think you owe J Crew a visit to get 2 shirts this time. 