Akt Enterprises — captcha typing job fraud

Address: Allahabad, Uttar Pradesh, 211003

My name is amit kumar
Last week i took a job from akt venture. The task is about captcha typing. He insisted that i will have to type 7000 captchas in 7 days with 90 days accuracy and it is free for you right now. It will not take any registration fee. When you complete the work, you will be able to cut the fees from your salary. Salary will be given. I also got a contract stating the same. I sent a photo of myself and a picture of my signature (I have not made any contract manually). He assured me that the work will be very easy and he has more than 6000 customers doing this work and none of them have failed. But of course it was not so. When i searched about this company, i came to know that this company is fraud and has fraudulent people like me. So i canceled the work itself, and the man who had taken the work through it also said that if you do not work, then you can cancel the work. When i came to know about it, i canceled the work.,,, and it was also impossible to get the job done because there were many technical flaws with the app that prevent anyone from completing tasks like we, i and l. Cannot tell the difference between (Slash), and many other errors such as unable to login etc. They also provided a phone number to a complaints department but when i call them they are busy or switch off or if someone says they say we do not know anything about this problem. Obviously i could not complete the work and now they are blackmailing me, saying that you have to pay rs 7000 as per the legal agreement, otherwise we will file a case against you. Pls help me, i am very scared.
Thank you
amit kumar