I don’t have caller ID which makes it even harder... Maybe I should get a caller ID box..
I hate to sue them because I do not like messing with lawyers.
Do they provide their name and/or number in their calls? Are the calls made by live operators or are they made through the use of a prerecrded voice?
A well rehearsed barrage of choice expletives usually works too!
I’m on the “Do not call list” and have not been bothered by any calls since I joined over 3 yrs ago.