Nexgen Outsourcing Services — advocate rajiv ([protected])

My name is komal. I joined nexgen outsourcing services. They told me that i have to complete 1500 forms in 10 days. I completed the work on time. System was showing forms are 1494 then i checked manually it was 1500. Then i called all the available helpline numbers but all were switched off. For 5 days i was getting message that qc is in progress on the i'd. After 5 days they blocked my i'd. Now some rajiv advocate ([protected]) is calling me and threatening me to pay money. Please suggest me what should i do next. I haven't paid anything till and blocked all their numbers.