Usys Services — usys services. home based job threat

I saw a ad from internet to work from from home. One executive called me from usys services and offered me a data entry job to be completed within 15 days. I started d job. But i couldn't finish it within 15 days as too many reasons like i couldn't get d entries in between and i were out of station and not felt well. I mailed them before my completion date saying dese. And to extend the date. But we're not reply from der. Once the submission date s over. They called me to pay the penalty of 7800
Within an hour. And also the 5800 rs. Which i can't pay. Just earn money had eagerly goin for d job by nw they threaten like my form had gone through legal department. Case been filed. Since am from poor family how can i handle this. Have mailed them saying excuses. So dat will finish work and deduct money from the salary paid by no response. I think their main aim is to grab money from innocent like me and torture us mentally. Am getting so many calls and msgs. Daily. Plz anyone help me.