Pyramid selling schemes are illegal and very risky get-rich-quick schemes that can cost a lot of people a lot of money.
Usually you pay a fee to become a member.
The only way to recover the money you invested is to convince other people to part with their money as well to join.
It is an offence under Australian Consumer Law to take part in a pyramid selling scheme or induce or attempt to induce others to take part.
You can be fined up to $220,000 for individuals and $1.1 million for corporations.
Find out more on the Australian Consumer Law website.