Harrasing phone call

Wanted to get some information about this company name The NWR Group. Arbitratir by the name if Leonard no last name. Phone number 904-240-4669. Call me today and left me a message with a friend. My friend called me. The company did not call me. My friend thought I was in trouble. The company threathen me to pay or be served with court papers if I didn't pay. I got scared and almost gave the company my information because I never been in trouble before. So than my friend goole their phone number over the internet and a lot of people were saying that this is a scam!  so than I asked Mr. Leonard to send me a email about what I owed and he stated to me all he could give me was a contract of what my payments were going to be. I wanted information about what I owed and who I owed it to. He stated to me once I had given him the credit card information that he would send me a email. So then he had said that there was a processor on the way to my house to process me paper work for a court date to retrieve the money I owe them. I called my local sheriff office and asked for the lady name to see if she even worked their. My sheriff office told me that dont have no one by that name. The Leonard guy keeps calling my friends phone. I am investigating this before I had over money to some company that I dont know any thing about.