“That figure is ludicrous. Completely untrue,” the spokesman said.
Charlotte, 29 is largely considered to be the biggest name this season.
Other celebs taking part in the bid to win $100,000 for charity include: TV chef Miguel Maestre, AFL stars Dale Thomas and Billy Brownless, YouTube star Tanya Hennessy, comedians Dilruk Jayasinha and Nikki Osborne, TV presenter Tom Williams, actor Rhonda Burchmore, radio announcer Myf Warhurst and reality TV stars Ryan Gallagher and Erin Barnett.
One former contestant reportedly told Confidential that negotiating a $1 million fee would not be difficult.
“You give them a figure either yourself or through your manager and go from there. You’re paid for each week that you’re in the jungle and they pay you after you leave,” the source said.