Calls many times a week

The best way to deal with this form of harassment is to get a loud bull horn and answer the phone with a very soft voice where they can barely hear you and then on the loudest setting set off the bull horn.  That is what I used to do, but now I simply do not answer my home phone and use only my home phone to call out. We do not have a answering machine for them to even be heard. I honestly believe these people are calling from prison as they are usually nasty and rude and have no class.  Please keep in mind that they get money each and every time they call you whether or not you are interested in their services.  (that is why they do not listen to your instructions to take you off their list) Also, if you report them and they continue to call you they could be liable for huge fines.  Get
a recorder , keep a journal and before you pick up the phone write down the  phone number, time and date.  This will be used as a record for any law suits.   Good luck. The problem with suing is that they will never need to pay out if they lose as they will shut it down and declare bankruptcy and then open up another company and do it all over again.