<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by Rut Dog:
If it were $50, would you lose 500 miles? Assuming no other transactions pending at iDine, how could they do that with the FF account anyway?</font>
Well, two possibilities as to "how".
One, airlines have partners that can deduct FF miles that you use for something other than the FF program's metal, so why shouldn't iDine be able to issue a negative number of miles in such a case? (Of course, if you had already used up the miles at the FF end and never wanted to use that FF program again, that would push out the question simply to the FF program level.)
Two, iDine could simply treat it as an internal negative, which would mean that if you ever used iDine for that FF program again, it would detect the returned miles at THAT point.