You wrote: My account is over 6 months old with NO limit increase, how long do I have to wait for a NO QUESTIONS ASKED LIMIT INCREASE? My friends have got an increase after 6 months, why can't I get one? DO NOT PULL A CREDIT REPORT TO ANSWER THIS QUESTION!!! Citibank: A credit line increase is based on many different factors for each account, there is no pre-set credit line increase timeframe. There was a credit line increase on this account 06/28/2002. Thank you for using our website. ***THEY ARE CALLING THE 1/2 BDD A LIMIT INCREASE!!! HOW ILLOGICAL!!!***