Qnet — Refund (Betrayal)

1.3 years from today my relative told me about a job in which he is working that there is an opening in his company and he suggested my name because i have enquired him about any vacancies anywhere. For the Job i have attended the interview where they told something whithout even disclose the name of company. Later i asked him about the job he told me that it is a digital marketing job and it will be easier to me since i am computer fluent. And he asked me to pay 5.5 lakhs and later 1.5 lakhs for the job. Further he influenced me to invite my friends who where poors so that this job may helpful to be succeed in his life. Because of this he invited his 2 friends and his sister. Later we realised that it is a network marketing company and the notice period to get refund has been over. Now e don't know what to do. Whenever we asks money they threatening us by showing an agreement that has been signed by us before joining(which we were not let us to even read). Now we don't know what to do. Help me with this. I can't disclose my id because of the privacy concerns(they may find and coerce us)