Fraud while playing a game online on internet

I have registered online data entry website in which says 60 pages typing with 70% accuracy and per page Rs. 100 and advance deposite Rs. 1500/- and 60 pages have to be typed in 5 days otherwise job will be rejected. after making payment Rs. 1500/- they send me a mail of 60 pages typing work with a word file with new rules and regulation in which it was written (1 spelling mistake = 1%) i.e. if i make 31 spelling mistakes in total 60 pages my entire job and my hard working of 5 days will be rejected and i have to forget my Rs. 1500 which i have paid in advance. Conclusion is that they get their work done free of cost and on the top of it they get Rs. 1500 by saying only. if i make 31 spelling mistakes in total 60 pages why it is not called 70% accuracy. This is an indirect word playing fraud many user fall pray of this fraud. i am one of them. what should i do?