If they honor it, this link may get a few more miles
http://worldperkswireless.com/March/ Check out http://www.freefrequentflyermiles.com/ (telephone option) for more choices. AA appears to award the most miles - 14K for a family plan.

I did this a couple years ago. At the time the reseller was inphonic. Working with them was was a bit difficult and the miles arrived slowly (once a month) but were all there in the end.