Not quite what you were looking for but got this email today from UA:
Dear Mr Davidson,
We at United really do appreciate your business. That's why when you purchase one roundtrip international First or Business class ticket on United between now and 14 September, 2003, you'll get one FREE economy ticket on United or any of our Star AllianceTM Partners to one of over 650 destinations around the world.** Plus, there is no limit to how many tickets you can earn!
It's a world-class deal for our frequent flyers.
To take part in this promotion you must first REGISTER (you only need to do so once)! Click here and you'll be registered!
Offer details:
• Roundtrip travel is required
• Qualifying travel must be ticketed and flown between 9 July, 2003 and 14 September, 2003
• Offer valid on qualifying international roundtrips in paid published fares in F and A or C and D booking classes only
• Mileage Plus membership is required and qualifying flights must be posted to the Mileage Plus account in order to qualify for this offer
• Free award ticket can only be booked through United Airlines
• Registration is required
• Offer is combinable with other offers
• Award tickets valid for travel between 15/9//03 and 31/3//04
• Belgium residents are not eligible
• Other restrictions may apply
*See Fare Facts for all the Terms and Conditions for this promotion.
Once you have registered, book your international flight now.
Your free flight is waiting.
Hurry. Promotion ends 14 September, 2003.