torres.in in dadar is it a scam?

Someone I know bought a scheme where if you pay 25k to this diamond company, they will give you 10% every week for the next 52 weeks, this sounds outright scam, as it is impossible to do that sustainably over a long term and points towards a MLM scheme, also the person who introduced got a commission for introducing new members of some 1.5k. How do I make them understand this, they are taking the company's side even after me trying to explain things logically and with facts. I checkedout their director's, there are two, one of them is disqualified. Anyone heard of it?