"Hi, can you hear me OK? (2-3 second pause) OK, great! You've been selected to receive a..."

This is a new tactic to make you think you're talking to a real person. I said nothing during the pause. How did "he" know I could hear him OK!?

As soon as I answered they hanged up...called my business number.   Number now blocked.

It's hung up, not hanged up. Get an education Lolah.

Get a life Joe !!

This number called but no message was left. Most likely a scam.