Debt collectors routinly call people with the name name in the area the debtor was from, “can I talk to so and so - do you know where I can get in touch with him?” Once you admit you know them, you’ll get called about three times a week, usually around dinner time.
I have had it happen with relatives and former employees, I tell the agency to stop calling me, and they call me anyway. I find out where the call is comeing from, and call the local sherrif with a complaint and request a restaining order.
Then if they want to violate the restaining order they can go to jail, go directly to jail, do not pass go, do not collect $200.
Just another reason to screen you calls via the answering machine, and of course keep your home phone number ‘private’.