I also received a voicemail from "Mrs. Wilson" to go over my electricity supply charges. This call sounded fairly legit, she even left a "reference number" (for the phone call, or my supposed account, or something). But I was immediately suspicious because I recognized the southeastern PA area code, and I live in MA.
Caller ID records a different number each time they call. Thery state they are from PPL. The number listed is what they requested I call back. They left messages regarding saving money on my electric bill but keep ppl. (800) 342-5775 this is PPL official phone number.