I also get hung up on when I ask them to remove my number. When I try to call them back (automated menu only available)and remove my number from their list it says that they do not recognize my number!
I've been receiving calls on my cell phone from an Auto Warranty scam. Different number every time. Automated message, if I press one to talk to a real person, I am hung up on immediately when I complain.
collection agency using enhanced elecronics to alter how info shows up on caller ID.