This month I have had my Comerica Credit Card for 6 months. (Issued by Elan Financial)
I was quite disappointed with the $1k SL so I haven't used the card very much, maybe 1-3- transactions a month, and have had a util reporting between 10%-20%.
I tried to hit the luv button for a CLI around the 5th month mark but heard nothing more than that the request went to review.
So last week, right after the 6- month mark, I noticed that Elan just did an HP of my TU report.
I decided to login to my Comerica account and check, and to my surprise I had just gotten a $5k CLI.
It used to be my card with the lowest limit, but with this new $6k CL it feels a lot more attractive to use. 