I keep getting phone calls from this number and other numbers from a "602" area code. They all identify themselves as an "e" company. "e-loan", "e-finance", or something similar. I have repeatedly told them to put me on their "do not call list", but I then receive another call from a different "602" number. How do I make them stop calling me?

they keep calling me , but when i answer the phone they don't say anything?