I did the two browser trick on AA cards last year. Annual fee was coming due this month so called to cancel. For Amex I was offered a $95 statement credit (annual fee is $85) and 1,000 bonus miles if I spend $1,000. I canceled it anyway since I am at my max credit limit with citi and wanted to make room. (I have had better luck with them when I have the room as opposed to moving credit around). For the AA Visa I was offered a $95 statement credit (annual fee $85) and double miles for 16 months on the first $750 I spend each month. That would earn me 12,000 miles if I did it for the entire 16 months. I said yes to this one. If you have a citi card with an annual fee coming due soon I suggest giving them a call. To bypass customer service and reach the retention department directly call 1-800-444-2568. A human usually answers after first or second ring.