As we previously reported, the Beautiful People singer had hoped to take to the stage at Burswood Dome in Perth last night, but was advised by his doctor to scrap the show over fears for his health.
Despite offering his apologises and issuing a statement that a full refund would be given to those who had purchased tickets, some fans Down Under seem less than impressed with Brown's no-show.
Ryan Hesford and girlfriend, Aleisha Puca - who brought their $149 tickets to see Chris in January - have told Yahoo News Australia that when they heard Breezy had axed his performance, they thought it was a joke.
Hesford told the website: "It is really disappointing. I've been told it will take up to two weeks to get a refund and that's $300 I could have really done with at the moment. But I suppose if he's sick, then he's sick."
The 21-year old has since taken to Twitter to tell his followers of his illness, posting a snap of him looking a little worse for wear on the social-networking site, accompanied with the message: "Sick face."
He later added the comment: "Still feel like s**t. Doctor told me I had the flu and it turned into a bacterial chest infection. Super meeds!"
According to Yahoo, there are currently no plans to reschedule Breezy's Perth show.