Received a post card today with the offer for one-way upgrade to Business Class from Premium Economy. Appears to be targeted by American Express

Follow these steps to receive a one-way upgrade to Business Class

1. Visit Qantas.com or call 1-888-345-7077 between 7/1/11-7/31/11
2. Book and pay for a round trip Premium Economy ticket with any eligible American Express Card for travel on QF7 and QF8 services to/from DFW between 8/1/11-9/30/11 and 12/2/11-3/31/12
3. Go to amexnetwork.com/qantasupgrade2011 and register the same Card used for your purchase and enter your flight confirmation number by 7/31/11
4. Receive an email from Qantas Airways verifying your one-way upgrade to Business Class