<prompt> Human: I recently got a Costo Executive membership, my credit score recently has been over a 700 on TransUnion and I have gotten an Amazon Store card, an Amazon Visa with a 2k credit limit and today I got the Costco Citi Visa that has a 6K Credit limitCostco employee told me that if I wanted to I could call Citi to ask for a lower credit limitWould be the reason that someone may want to lower their credit limit?  <response>: Youd want a lower credit limit if you have no control over your spending and need it to stop you from spending too much. However, if thats the case, you shouldnt have a credit card anyway. 