"But today's entertainment tycoons seem to only care about becoming richer and living an even more opulent lifestyle, while duping their fans and followers."
Disick is accused of being the main organiser of the lotteries, with other family members such as Kylie Jenner, Kris Jenner, Kourtney Kardashian and Khloe Kardashian helping to promote them alongside Kim Kardashian.
TMZ reports that Kim Kardashian and Disick are the only family members names in the suit.
On its website, Curated Businesses explains the process behind the lotteries and provides a list of winners from 2019 to 2022.
Under the question "How is the winner selected?" in the FAQ (Frequently Asked Questions) section, Curated Businesses writes: "We engage the services of a third party facilitator to conduct a random draw of all eligible entrants.
"They are Australian government approved and compliant. As required by Australian law, we also engage the services of (a) fully qualified independent scrutineer to oversee the random draw."
One of the winners listed, who uses the handle @nana_billions, posted to Instagram in August celebrating her win.
"Pinch meeeeeeeeee! I'm screaming omg this is surreal!" she wrote.
"@curatedbusinesses@curated_businesses_legal thank you guys so much! I'm in shock."