Just recieved a call from this number again

Yet another collection agency/skip tracer calling for someone named Leah, whose last name no one can pronounce. I told them I wasn't her and don't know her. The phone calls began anew from another state. Now they are calling from Tennessee. They aren't accomplishing squat. All they are doing is ticking off a person who has nothing to do with the alleged debtor. Quit calling me, jerks!