Was offered:

1) $85 credit for 5 transactions
2) 3000 bonus for $500 spend
3) 2 miles per $ for 6 months

I accepted (2) as I have other cards to spend on and I already got targeted for 1.5 miles per dollar until 10/31. This will get me closer to the 2m mark

This is on a Citi AAdvantage Amex opened in 2009 and I got a similar bonus last year when the first annual fee came up

Called the retention line directly. Will call again tomorrow for my Citi Biz Visa which is up for renewal soon too