If they tried that stunt to an Australian purchaser, our laws ensure that they HAVE to honour the advertised price and features, regardless of convenient disclaimers. I might have to start buying more stuff from the States! 
I'd defo get in contact with the CC company and report them, as well as notifying Apple. Anything which seems too good to be true usually is.
I'd defo get in contact with the CC company and report them, as well as notifying Apple. Anything which seems too good to be true usually is.