I called for an increase of 5k  at 6 mos and got it. I had the csr on the phone as she reviewed all of my citi accounts. I have 3 cc's with them as well as Home Depot and a very useless Sears card. They also upgraded my secured card to non secure and increased the cl on it too! She said that I can request a cl increase every 6 mos. Soft Pulls for me. My intial cl on the 5 k increase was 10.9k. I reallly like Citi!