<prompt> Human: I have an amazon visa card from chase. Its no longer useful to me. I want to replace it with a chase freedom visa for the 5 cashback, but the amazon card is a business card never understood why and cant just be switched without closing the card.My plan was to let my fico score to get to 800 at 788 right now to cancel and order the new card after I make sure all my card balances are 0, but am I better off just ordering the new card and not cancelling my amazon card?I have a discover and an amex as well, both active.TIA  <response>: As long as you arent paying any annual fees on the Amazon Visa, just leave it open. This will benefit three markers on your credit report:1. Average age of accounts2. Total number of accounts3. Credit utilization ratio 