Lonofy Technologies — Fraud data entry work and demanding money and threatening messages

So a week ago i got a call from a comoany stated lonofy technologies for 8000 captchas in 8 days job then i accepted it and then for 2 days it went well after that i observed some scam things i tried to contact them but they didn't respond
So i quit the job
So today i got a msg and a email for paying the money 8000 if not then threatening regarding legal proceedings
I blocked their number and email address
I searched on internet about all these scam and most of them are from gujarat only
And the person name is rajiv singh who is threatening me
Please help me