The manager I talked to actually told me to get fucked, they'd keep calling if they wanted - and they did, too, sometimes three times a day. This went on for weeks; I'd dial 1 to connect to a person and lay the phone down, and finally they stopped (probably that particular guy got fired or something - I guarantee they have massive turnover).
This goes beyond just milking strangers for lots of money. This kind of racket attracts sociopaths who literally enjoy breaking the rules and knowing there's nothing you can do about it. I often have a hard time believing in the existence of actual scum, but then I just recall this episode. There are people in the world who do not buy into the narrative of working together for the common good.
It is music to my ears that the FTC has nailed some of them down enough to make them hurt. It has made me very happy.