payday loan america constantly calling.when i tell them to stop they told me no i threatened to get a lawyer and 10 minutes later i got another call Internet

I started recieving calls about a week ago. I was originally ignoring them because they showed up as a private number on my caller id. I finally decided to answer it to find out who was calling. When i realized it was a payday loan company I told them to stop calling. I was constantly getting hung up on. Today when they called and I said to stop calling the guy on the line said no we need to know how much you need. I said I want to talk a supervisor and immediatley one was on the phone. He was listening in on the car. I told him I dont want anymore phone calls and he then said no they will continue to call. I said if they are going to continue to call I will get an attorney because this is harrassment. He got mad and said ok, ok and hung up. Not 10 minutes later I got another call from a man named David. I said what do I have to do to stop these calls and I was hung up on. I get about 3 or more calls a day from these people