I called chase and within moments he was reading the spiel about how it was targeted, no way to force targeting, details of the promo, card type didn't matter, etc. It was clear he was providing info specific to this promo with the 15K max. If you're not targeted I doubt you'll get it...
SPG Amex rep after intensive research also reported "nothing" for any of the card types I held. She said she found one but it was on the Delta Amex.
Scho