Okay, so the Citi AA Platinum VISA card offers 10% of your redeemed miles back. I think the benefit is per calendar year. Max 10k miles. And may take 6-8 weeks to post. I've currently got two Citi AA Platinum VISA cards. Thinking of cancelling one of them soon. I assume the benefit is one per AA account, so no problem there. Just want to make sure there isn't some reason to sit on one of the cards for a little while so as to guarantee I get my 10%. The card I'm thinking of cancelling was applied for 4/9/13 while the one I'll keep for at least a little longer is from 8/22 if that matters.