My Captcha — blackmailing for money

Address:

500055

At first they called us that if we are interested in the works after accepting to do the work they asked us to send our aadhar card so that we are legitimate or not as soon as we sent the proof they gave us the agreement which is digital as they asked us to sign we asked them if we should pay money or not they said no need to pay money and also before signing it we asked them if we are not interested to do work and if we reject is that Okay? Then they said as we provided our aadhar we should pay money for registration even if we cancel it before signing after immense pressure from them agreed to that hesitatingly and they said if we agree to that then there's no need to pay any money. so we agreed then to do the work after two days my phone started giving errors when started the app and continued to work after two or three hours . So we called the customer care and asked for help then they said that we should mail to the given I'd [protected]@gmail.com then there's no reply and called them again from different number and there's no response from them so we left it like that. Today on 29-1-19 they messaged that they are forwarding our file if we are unable to pay the money before 5'o clock.PLEASE HELP US with this type of harassment.