Threatening phone calls

I received a call from a man named Austin Black thick Indian accent telling me I owed 738.23, to Advance Cash America for a payday loan, and when I asked about it, he became irrate, his phone number is 845-481-8038...told me that he was with the Federal Bureau of Investigations Group. He threathened to have me picked up, and held for 3 days for evaluation if I did not pay them. By now I was shaking and told him that I didn't have that kind of money, he offered that I could pay $369 on Monday and $369.23 on Friday and that I would need to fax a letter to authorize the payment. When I asked where I needed to fax it I was told he would call me with the fax number(never got fax). I am so glad that I checked this out because I was supposed to pay today with my walmart prepaid debit card and I recieved a call that he couldn't get it to go through and for me to send it by western union to a Adam Shorr in Land O'Lakes Florida. I didn't pay it, thank you for posting this. I will be calling the REAL FBI tomorrow.