Here in the colonies we now have a National "do-not-call" list. I procrastinated placing myself on it and as a result I inherited the calls from those who already had signed up. My phone rang 50-60 times each evening - literally one after another. I finally signed up and it has ended.
All but one. There is a mortgage bandit in Los Angeles that calls me at about five, each Saturday afternoon. If it happens again this week I will file a "telephone harassment" complaint with my phone company and that should be the end of it. It is wonderful now.
Your country and your phone service provider might well have similar services.
In the dark ages of telemarketing I favored just setting the phone aside as they have to pay by the connected minute. When I got an annoying call from an 800-number I would write it down, then drive to a very remote pay phone and dial it and leave the phone hanging. They had to pay for every connected minute until they could locate that phone and get someone to drive there and hang it up. I'm sure some of those calls went several hours.
Here in the US some telemarketing was done by prison inmates hired from outside - rather than making license plates. There is one incident where a person they called responded obscenely and succeeded in offending the inmate. The inmate was released from prison a few months later and went to that person's house and did them harm. So before you say anything to them, remember they know your name, address, phone number, and probably a lot more about you. Be careful
Happiness is not seeing another trite Ste. Maarten photo all week long.