Who called from 8568227007

I picked it up because I expecting my clients to call me back. It's recorded message how to lower your electrical bill. Scam, blocked

I called them back from a different phone and the first thing they say is press 9 to be put on the do not call list

Called my cell phone, but left no msg. Caller ID indicated that call was from Go Green in Franklin ville.

They call every week, and I just dont pick up.  Reading these messages, I believe I will be blocking.