Data Max Bpo — Sending fake notice and threatening messages

Address: Ground Floor, Patil Wada, Lal Chowk, Opp bazar, Sinnar, Nashik, Maharashtra - 422103

I'm a law student and started doing part time for data max BPO for a form filling job starting 29th November to December 9. I've successfully completed the job on time and the third day of completion of work I've received an email from legal2020.[protected]@gmail.com stating that I've not completed the work with 90% accuracy and I've to pay them the administration fee of rupees 3400 they have already told me that they would provide the QC report inorder to check the accuracy of work which they haven't and also 13 December I've received a fake legal notice from Adv. Mane and associates telling me to pay 3400+2000 that is the admin fee and their notice fee and started getting threatening messages since from the numbers [protected], [protected], . [protected], . [protected]. Kindly find me a solution.