Got a call about 5 minutes ago from this number which caller ID showed as "Unavailable". I did not pick up and caller left no voice message. Since I got my debit card "hacked" answering one of these calls, I do not answer any number caller ID's as "Private", "Unavailable", "Toll Free" or "Unknown".
I get a call from this number about 3 times a day BUT when I call back I get nothing but static. No one answers. I have blocked their number where it automatically goes to voicemail now.. Never left a message!