Originally Posted by
alexflood
... Other than move country I'm not too sure how to get this flight. ...
In this day and age of e-ticketing, very little gets actually sent to a "billing" address.
It may be worth your while to "move" to the USA for the purposes of making this purchase. You would not have been the first to have done so. (Of course it is essential that you correctly specify your email address and carefully note the PNR upon confirmation).