[Resolved]  Stn Solutions — asking to pay

I received a call regarding work from home.. A person called me and told me that they will provide me 1000 pages @ ₹20 per page and 5200/- registration charges which will be deducted from my salary i. E. ₹20000. I completed my work 1000 pages and i am very sure that all are correct.. But they provided qc report and they said qc report is fail.. Now they demanding money from me and threatening me if i will not pay then they will send notices..