I always get that response as well (" we are evaluating activities at assigned credit line"), and it's so frustrating. My only speculation is that they want you to spend a ton even if you utilization is high. I like Cap 1, but I've been stuck at 5000.00 for two years now... One of my first cards, hell Chase gave me a 3000.00 increase for the hell of it, I didn't ask.
Once Cap1 decides they dont like your TL, forget it. I have an 11 year old never late Visa Plat card with no problems STUCK at a $1750 CL. Their Creditwise TU score they give me is 790. I only reason i keep the account open is for the account age
It's important to understand the product from Capital One that you have in your wallet. If you have a rebuilder card, or their easier card to get such as the Platinum Card or the QuickSilver One card, then those credit limits will NOT grow that high. These cards are great for rebuilding, but once you've done that, then it's time to ditch the cards for ones that offer better opportunity for growth.
The cards that offer opportunity for growth are the ones lised on Capital One's site as being for Excellent credit. If you've had a subprime card for an extend period of time, you can see if capital one will allow you to upgrade that card to one of their prime cards, or a card with rewards. Use the link below to check the eligibility of your current cards to be upgraded.
One thing to keep in mind though is that the QuickSilver card is NOT the same as the QuickSilver ONE card. The QS ONE is easier to get, and more of a sub-prime card that can see some of the credit line limitations as cards like the Platinum card. A regular QuickSilver (without the ONE, and without the annual fee) is a prime card.
Hopefully this provides some clarity on why some of the cards people have with Capital One do not grow, even though you've had them for extended periods of time.
Could you tell us a bit about your credit back ground. I had a 680 credit score got a cap card for $4500 and withen a year had it at $9000. Also every 2 months the send me a balance transfer check for 18 monts 0% apr. 3% fee. I haven't used them yet but I could get a loan of $5000 for a one time fee of $150 and pay only $300 a month. Pretty nice.
I have had the QS One for almost a year now. They did a CLI for 1500 @ 5-6 months. I had totally forgotten about the yearly fee until this thread. Got on the phone and they happily changed my One to the QS, no questions. My score has dramatically increased in the past year though-- I'm pretty sure I started out sub-600s, maybe low 600s and now I'm going between high 600s to low 700s depending on UTL. Not sure that had anything to do with it or not.
Off topic but if you listen to Spotify and have a Quicksilver card, you can get half off Premium through April 2018 if you pay with your QS. https://www.spotify.com/us/capitalone/