If you do have documented proof of what you claim against the Do Not Call Registry, contact a lawyer. There's money to be made in class action lawsuit.
But I'll continue recommending it, I haven't experienced what you claim, nor has anyone else I know of for several decades now.
No lawyer could make it worth the time or money.
The phone companies are complicit with the scammers.
They claim to not know where the calls are coming from- this is absurd considering that the scammers are using the phone companies' own systems.
The continual harrassment of customers has been a cash cow for the phone companies, as desperate people spend money on one ineffectual 'solution' or another (provided by the phone company itself or other crap).
Ever notice that when you call 'customer service' for the phone compny, it sure sounds like the very same person answers that just called you three times in a row during dinner?
These scams did not exist until the phone companies started exporting their customer service jobs to countries that basically hate us.
Notice how they do not call people in their home country, unless they have actually set up a scam center in the host nation.
The phone companies gave them the technology that the scammers use to cause grief, misery, and unrest in nations that they despise due to economics/religion.
Proof of this was found when I kindly asked if whom I was speaking was of a certain religion.
The reply was basically a string of 'F-yous' and threats, culimating with the person threatening to blow up my house and kill my family.
When I reported this, the officer wanted to turn the story around as if I was the one making terrorist threats.
I made so many (all legitimate) reports to the FCC that I was asked to stop.
These calls are predominately made to landline phones.
There really is no legitimate reason to have a landline phone if it relies upon the internet to work.
If the power goes out, the phone won't work and you have no internet (which is how the power company requests that you contact them, lmao).
If you notice, a landline phone number is basically a 'freebie' that companies provide with an internet package.
Go ahead and tell them you don't want it, and your bill will not change.
This is all part of the companies being complicit with the scammers.
I have found certain numbers to departments of a phone company, and gave them a dose of what having their 'service' is like.
I called two or three times an hour, and played a recording I made of an actual scam call- or even mimicked one myself.
Of course, they just blocked our number.
They offer number blocking for free to customers as well, but at that time it became full at 14 numbers.
This was good for less than a week.
Scammers can't call a cellphone that is properly protected, but that takes effort from the user.