National Action Financial Services Getting harrassing calls from this company for a year now and I've never owed them anything Williamsville New York

When I moved into my current address a year ago I went with cable phone service. Evidently my number used to belong to an individual that owes this company. The phone number no longer belongs to this individual it is now mine. I have repeatedly told representitives from this company these facts and would sometimes be assured I would no longer be bothered. Yea, right. I even had one caller say, " So he no longer lives with you". I am not related to nor do I even know the individual there trying to reach and he certainly never lived with me but because he used to have the phone number they continue to harrass me with phone calls, several a day. I do I get this to stop?

Jeff
Tyndall AFB, Florida
U.S.A.