Maybe the fact they only come to three shows and not to the other shows is a sign that they will tour in Australia too. Ánd if you buy a ticket and BJ don't play at Rumba, wich they probably will anyway, you are probably able to sell your ticket again, cause it sounds pretty popular to me. So I don't see a very big problem. But ofcourse I can understand your dissappointment.

Greetz, Alja