Type Jobs — online fraud

Sir mushe 29march 2019 ko call aaya online work ke liye from type jobs in-home kaha ki 800 forms ko 8 days me complete karna h ar per page payment 35 rs ki hogi maine din raat ek karke. 800 forms complete kiye ab vo payment karne ki jagah bol rahe h ki 90 % accuracy nhi h to 4000 penalty pay karna hoga jabki usne pehle penalty ke bare me koi v information nhi di thi sir mai student hu i can't pay this amount
Please help me they also threatened to take legal action