A further update. AF have dealt with Mrs yt’s claim for the ‘air miles’ for the AA flight between Buenos Aires and Ushuaia - they have credited her account with another 750 miles. They have not mentioned my claim at all for the same flight (?) I made a separate claim at the same time.
Additionally, and perhaps somewhat spuriously, they have also emailed to say they are going to refund 2*£62 to the credit card that made the original flight bookings. I do not know why they are doing this, but who am I to complain ?