Glob Sol — blackmailing/ asking for payment

Address:

72, Maa durga apartment, Maniktala, Makhla, Uttarpara, Howrah, West Bengal, 712245

Hi
A few days back i got a call from a typing company named glob sol saying i can get the job without paying in advance and that the advance will be deducted from the salary that will be paid by them. Also i'll have to pay if i cant complete the task within 1 month. But it is not yet 1 month and my account is locked and without any further messages or calls from the company, i straight got a mail from an advocate named mihir hired by the company, i was informed that i need to 8900 by 3pm today or else they will file a case against me in court. Please help. What should i do? Please i am in urgent need of help