recording says scheduled call reference number.
SCAM

Got a call from this number (which my caller ID traces to Hasbrouck Heights, NJ) on May 22, 2017 at 11:37am EST. I didn't pick up, and they left no VM.

left voice mail - "Theresa from client services calling to authorize a supply reduction on your electric account, call 1-877-813-6176 with reference number of 01014".  Scam/Sales

I just got the same voice mail message.

I just got the same exact message. EXACT.