Offer your thoughts or opinion on the input financial query or topic using your financial background.

Why was my Credit Limit Increase Denied?
I think they gave you the answer: You haven't previously shown that you can run that particular card up to (near) its existing maximum and then pay it off, so they don't have a strong indication that you can handle that large an unsecured loan. Generally, requests to have the limits raised when there isn't evidence that the customer is finding the current limit inconvenient are going to be considered suspicious. Remember, a great credit rating does not require that they consider you a good risk -- it's just one of the things they consider. Why do you need the limit raised? Have you tried contacting the bank's credit department directly and discussing what they will or won't let you do? Re paying off the card every month: Remember, they do get a processing fee from the vendor. They'd prefer that we paid interest (I'm told the term of art for those of us who don't is "deadbeats"), but they certainly don't lose money when we don't. And they'd generally rather have us be loyal customers who MIGHT someday pay interest, and who are bringing in fees, than have us go elsewhere.