Takhar group Harassing phone call Internet

I received a call from the takhar group saying to return the call, they did not say who needed to return the call, but I wanted to know what they wanted. They said I owed money to a book club, so I said I did not and they said they were going to put negative info on my credit report if I didn't pay. I asked for their address and she asked if I was going to pay, I said no I was sending a cease & desist letter because I don't deal with collection agencies she became very angry and raised her vice at me so I hung up. I don't have to listen to that.