Easy Build Technology — data entry fraud and threatening me

They provide me 800 forms for 7 days and I did proper work till 3 days and submit approx 342 Forms but next day when i m going to start my work they shown me your QC Report is under review, i called the customer care they told me you will get a call from our executive, they told me that you are doing multiple login but i did not, they told me to penalty for 3999.00 INR for restart work or shutdown the work with company, i disagree with them but they are calling me and warning me to pay or tell me they will send the police.