[Resolved]  Akt Enterprise — blackmailing and fraud

My name is manya asthana.
I am student, and i took a job from akt enterprises. The job is about typing captchas. They insisted that i have to type 7000captchas in 7days with 90% accuracy or else i have to pay them 5100rs. I also got a contract telling the same. I have send pictures of myself and a picture of my signature (I did not manually sign any contract). The job was impossible to complete because there was a technical error with aap i. E. Problem with i or l, slashes and commas. They also provided a complain department phone number but when i call them they are either busy or switched off, most of the time mobile used to remain closed. Obviously i couldn't complete the job and they called me to pay 5100 ruppees. They told me that they filled a case against me, threatening me. I payed the respected amount. Now they are blackmailing me to pay rs. 12500 or i will face them court. They are constantly blackmailing me, i have also searched online about these jobs and akt enterprises and found out that this company is fraud as i saw a complaint against this company. Please help me to escape from this trap.