I was trying to call up Capital One to find out more about my change of terms and while strugling through phone menus, came across "Increase credit limit" choice which I tried out. The message that came with that was somethinkg like "Capital one does not accept requests through automated phone system or through our representatives. Capital One regularly evaluates your credit history and will increase the limit as it finds fit." Not verbatim, but that's what it said.
I've had the card for 6 years and the limit started off at $5000 and while I did not use it for the last year, it went up to $5500 and they upgraded me to Platinum status. So that's the story on the card.
None of my other credit cards have anything like that. My AMEX I can request increase online, others by phone. Here I am confused as to what kind of evaluation Capital One would "regularly" do beyond looking at my spending history. It seems to be a systematic approach but there is an off change that I got a "preferential" treatment.
Anyone has a similar experience?

