My travels have managed to avoid DCC for a while, but confronted it in several Australian hotels. Selected $A each time of course. Surprised to return home to see several of the transactions billed in $US, with an outrageous (though not Majuki outrageous) of 4-5%.

I think what happened was I selected $A when checking in for the preauthorization. But then when I checked out they ran the card again automatically (i.e. express checkout) and they self-selected DCC.

I've contacted the hotels . . . but expect to dispute.