Gs Solutions — fraud data entry company

Actually 3 days ago i recieved a call from gs solution executive, i said that you need to fill 800 forms in 7 days with min. 90% accuracy (720 forms), so i opted for it. But as soon as i signed in it, my friend told me that it is a fraud company and just 5 mins after my id was created i called them and said i dont want to work please cancel my id and they were like “now we cant cancel it, you have to pay 4, 500 so i said that i havent worked for 1 day nor i have signed in my id to work atleast once” after this there was a heated brawl between the executive and me. They said that they will file a case against me if i dont pay them. So i wanted to know what exactly are they, bunch of people harassing others for money? And to what extent they go to recieve money from people by fooling them around. I want to know the consequences if i dont pay them
Any help will be appreciated :)
And there was an agreement too which was signed by me digitally, i wanted to know about the genuinity of this agreement