Scammer

This number keeps call me and when I answer, they hang up

They just called me. I'm a little freaked out because I had said yes when they asked it I could hear them, then they hung up. My dad had said that there was a scam going on that by answering yes to a question of theirs, they can use it as a confirmation to switch phone companies or electric companies and charge you high prices to cancel the subscription. I don't know if that is a true scam or not, but I'm worried that I agreed to something.

Let me refrase that...I'm worried I agreed to something that I did not WANT or know about

Received a call from this number and did not answer. No VM left.  I've blocked the number!