I've not received the points offer... I wonder if everyone affected is getting that? (My flight was cancelled Wednesday after 7 hours at the airport; I booked on AA the next morning. I received the 50% off code and when i pushed I received a $200 voucher.)

For the 50% code, be aware (in case it's not apparent) that you can use this only once. If you need to cancer or change/rebook that itinerary, you lose the discount and it cannot be applied again to a future booking.