<prompt> Human: Ok heres the story:I lived in the US for 11 years but I emigrated back to my home country in 2013. I took care of my credit scorehistory that the last time I checked 2013 I was between 790-820 credit rating from the Big Three. I had 4 credit cards and 3 cars under my name, all paid up just before leaving the US so Im hoping my credit rating hasnt gone down much due to inactivity for the last 3 years.Fastforward to today. Im searching on Amazon and upon checkout, as always, theres an option to apply for a no-annual-fee credit card to get a 50 Amazon credit that is applicable immediately upon approval. I am not in any way planning on using this credit card after I spend the free 50. My question now is, is this a smart idea? If i put my sisters address there as my new address, will there be actionable fraud on my part?Assistant: I mean, there are better sign up bonuses than 50.The Sapphire Reserve has a 1500 sign up bonus.Human: Thats nice but that annual fee is scary for me. I believe Chase Sapphire carries a 400 annual fee which is a deal breaker.Assistant: The Sapphire Reserve has 450. Sapphire Preferred is 98 with 625 bonus.You do know you can cancel cards right? Or downgrade them to no fee cards?Human: Ok, that didnt even occur to me! So... just cancel before the first annual fee kicks in?  <response>: This is a dangerous path you need to do much more research in. See rchurning 