Ditto all of the above. Very rude. They hung up on me. When I called back, voice mail full and person briefly who talked did not sound "business-like."
Similar to the posts before me. I pressed 1 to speak to a representative and informed them that my number was on the do not call registry, she said 'shut up' and hung up.
I got a phone call from this number, I hit decline cause I was in the middle of something and I didn't recognize the number. They didn't leave a message and when I called back, it said that the person named "HELLO" mailbox was full. Thank you everyone for the information.