I have them blocked on my phone and receive 4-5 phone calls a day. I called the number back numerous times to put me on their do not call list. That doesn't work. I am sick and tired of their calling.
If you call them back...nobody answers except the recording to be added to their "do not call" list...and they keep calling anyhow! So what's their purpose or point of calling?!?! Besides to irritate the crap out of you....!!!