I did the Delta offer for myself and FLgrr+1. In each case you get to the quote and no indication of what you do from there, or a confirmation at that point that you are done. Then I saw the AA link included. So did myself and FLgrr+1 for AA. Not sure if it was a cookie I had not cleared on my laptop, but the site 'remembered' the +1 details I had entered earlier (a few hours between the DL and AA attempts). I used fake email and phone on all, but kept the address somewhat accurate (left off condo unit number).
We will see what miles post. Conversation also under Delta, but title says 500 miles
http://www.flyertalk.com/forum/delta...5-minutes.html