AF posted for one of my two Business Platinum cards yesterday. This was a BRG card that I upgraded in October '16 in response to a 50,000 point offer.
Called today and asked to cancel. Was offered $150 to keep the card, asked if there were any other offers and rep offered 15,000 MR points. No minimum spend requirement for either, took the points. Put $31,000 on the card in the past year.