Inspired by this thread, and as the $950 annual fee for my Platinum Charge is due next week, I called Amex last week to see what they could do to retain my business.
Initially, I was told that nothing could be done (no points etc) for the Charge (~$20k pa spend). I said fine, but closing the Charge would also result in closing my companion Reserve (with its massive $3k limit and a spend of <$1k pa). I also noted that I had an Edge, but I did not threaten its closure as the annual fee for this card is not due until next year.
Noting that the Reserve would be closed appeared to get their attention and 23k MR was offered for it to stay open. With a bit of hesitation, another 23k MR was offered for the Edge as well.
So I ended up with 46k MR to retain all three cards, but received nothing directly to retain the Charge itself.....