4 years. 4 years these dirtbags have been calling ...

4 years. 4 years these dirtbags have been calling me and for 4 years I've said no. Stop calling. I've been nice, I've been aggressive, I've talked to the police and I've left every ghost number they call me from on the do not call list. Does anyone genuinely know how to stop these a$shats from calling me?!?