No message was left in voicemail. When I called back, a woman answered by saying, "hello?", and didn't give me her name, said she was calling for Verison and needed the last 4 of my ssn before she could continue. I told her I hadn't had version for 3 years and had a zero account balance. She insisted she needed my last 4 digits of my ssn. I told her when she had more information, she could call me back. I feel certain it's a scam trying to collect personal information.