This number kept calling my work telling them that I was going to be arrested for a pay day loan I never took out.  They told them would call back every 10 minutes.

This is an Indian payday loan scam totally made up debt.Trying to extort a bogus debt hang up on them.

This number called me and said there was a complaint about. Took down the number and tried to call back and it said the number is not in service.

been calling my work for 3 days told girl I talk to when I call said they was cash advance but it took her 5 mins to tell me what company, my boss been taking the calls and the guy told her he was something something else he done [***] out my boss and every body at my job its a living hell at work but my boss did call the cops

Good for you and him! Your boss could also contact his phone service provider and see about getting them blocked as well.

You can also file reports with the FBI, your state attorney general and Department Of Justice,CFB,FTC & FCC..

http://www.nw3c.org/
http://www.ic3.gov/default.aspx
http://www.fbi.gov/
https://www.ftccomplaintassistant.gov/#&panel1-1
https://esupport.fcc.gov/ccmsforms/form1088.action
http://www.consumerfinance.gov/complaint/