"32 Miles per $1" Groupon is affiliated with the airline programs' Shopping Malls. Advisory was in a drop-down curtain from the USAir toolbar that helps to exploit the Dividend Miles Grand Slam program, and didn't offer details. May be only in USAir Dividend Miles program. May be just today.

Now, cover all this with the caveat that Cartera, which is behind the Shopping Malls, and is a key link in making this work, is very unreliable.