<prompt> Human: I currently have three credit cards:American Express - Current limit 18,500monthChase Freedom - Current limit 10,000monthChase Amazon - Current limit 4,000monthI have requested my Amazon account to get an increase 3 separate times now, and they have been denied consistently. Whenever I ask for my American Express account to be increased, Ive been approved every time. According to CreditKarma, my credit score is 750 and Ive never had a delinquent payment.I like using the Amazon account for the rewards, but the 4,000 limit is not sufficient if I am going to be planning trips and whatnot I usually plan for our friends and they pay me back in cash.  <response>: You have a chase freedom card and a chase amazon card. Both of these cards are serviced and held by chase. This means chase as a company is extending you 14,000 of credit. This could be the reason. You can call customer service and have them escalate your problem to the under writing department, or you can ask them to transfer some of the credit limit from the freedom card to the amazon card. 