I received one too.  Didn't answer and they didn't leave a message.

Well, I received one after they called you ...
They do left vm to me says something like: you are currently over paying for your auto insurance so they provide free services....
the vm sends to me in text format so i did not check the real msg.
anyways, I'm not interested to call back.

Just received a phone call from this number. I didn't answer, and they didn't leave a message. I am not interested in phone spam!

Many thanks!

I received a call from this number today.  Did not answer, did not leave voicemail.