Webtech Data Solution — threatening with e-mail for payment of 5000+3000/rs

Address:

Sonia, Ramnagar 4th line, Rims hospital,Rims girls hostel, 523001

I applied for this online captcha entry job and i registered by knowing rules. They didn't gave me any login information, so i emailed to respective helpline center they said check it after 6'oclock so i did the same it didn't opened on that day. On the following day it opened. When i did that captcha and reporting means it didn't give the correct count. So i understand that it fraud, if i complt the task also they won't pay me, they will just say the reason. So i quit the work. But they threatening with msg and email about filling a case. So plz take responsibility regarding my complant. And create awareness about this fraud companies among common people.
Thank you.