Unix Enterprises — they told me to pay 4500 if i did mistakes more than 150 in form filling and now they are telling me to pay 8500

T agreed to do form filling work for unix enterprises. Today a person telling him as legal adviser, trainer called me and said that case is in the court, will u solve it out of d court or in the court. He is telling that i will receive a legal notice to my home and police will come. Plz help me. The company didn't even called me once, they are not even responding to the calls. Please reply me and help me