Calls 4-5 times a day and never answers, sometimes I get a recorded good bye. Called the number and get a recording in broken English that give the choice of talking to a customer rep or being put on their no call list. Neither works still keep getting the calls everyday and customer rep never answers.
I also have received calls like this. I have found this will stop them.
I answer the phone with Officer XXXXX (you fill in the last name). You have called into a crime scene and I notice that you have called this number several times. What is the nature of your business.
Normally by this time they have hung up. They may call again but that is the end of it.