They called me today also....I called them back and pressed 1 to speak with a rep. When they answered I put the phone on mute and heard them say hello...hello...helloo. Everybody call them back and mute your phone to give them a taste of their own medicine..lol.
Blocked this # too......no idea what company it is - don't care. Trouble is I can only block 20 #s on my system so have to unblock another one! Do Not Call list works wonderful!