Americal Legal Services They called my workplace threatening and cursing calling me very derogative names and saying they were going to kill me and my children , Internet

I have been harassed by this man with an indian accent at phone number 727-756-1632 from a company called american legal services. He calls me  and says this is Officer Woods at all hours of the day whether at work or on my cell threatening to kill me, children, family if i do not pay $436 for loan cash advance for a case #RYS29412504. I do not owe this money. He knows my social security number and curses and calls me all kinds of derogatory names. I am scared for my safety. This man is making terroristic threats and telling me he knows where i live and proves it by speaking out my social security number to scare me and  when I tell him i am reporting him to FBI he calls me back to say i am going to die. Please can you do something this company is terrorizing people. Enough is Enough. Thank you.