Free spam call blocker

Same Pakistani telemarketer cold call group who has now called 576 times since 08/11/23 using different numbers. I keep a full record w/dates & times, many calls also recorded, including calling the number back to see what happens. They refuse to stop calling, despite being told 100s of times. Caller claimed to be Road Traffic Accident Hotline, asking if I had an accident in past 2 years. They xferred me several times, name changed to Accident Claims Hotline, & you can hear others in the bac