Talk to your friend and ask her if she can withdraw her apparent earnings in full. I would almost be prepared to bet that the answer will be 'no'. Apparent earnings are just that - figures on a web page. Real earnings consist of money in your bank account.
This scheme operates on the basis of people 'sponsoring' others, and making commissions on the amount of business those people do. Those people sponsor others, and on it goes - it's pyramid selling in my book, but that's a personal opinion ; I make no comment as to its legality in this country.
I wouldn't be remotely interested in joining anything that operated in this way, even when confronted with the almost religious fervour that typifies the few people who sing the praises of such schemes. If it truly worked in the way they say it does we would all know about it, and most of us would be doing it.