I was getting a bunch of those canada revenue scam calls a while back. They left a message with some robot voice saying 'there was a lawsuit in my name and blah blah blah blah bullshit' so I looked up the number and read about the scam. Apparently they'd actually managed to rip some people off and they were being searched for. So, the next time they called me, I called the number they left me. Some dude with a French accent answered. I started ranting. I told them if they ever called my number again I'd report them to the RCMP and swore a bunch and was fairly rude.
Funny enough, I never got a call back from canada revenue agency for, being less than polite to them, and the spam calls stopped.
My advice, if you actually get a real person on the line, call them out on their shit and tell them to fuck off. It seems to work.
Although satisfying, this isn’t a good idea, they have your number and are capable of asymmetrical warfare eg spoofing your number for the next 10000 scam calls they make.
Funny enough, I never got a call back from canada revenue agency for, being less than polite to them, and the spam calls stopped.
My advice, if you actually get a real person on the line, call them out on their shit and tell them to fuck off. It seems to work.