I've gotten a couple of these. But they never leave a message.

received several calls trying to collect for a magazine subscription I never ordered.   I received the magazine, then same week a call wanting to settle my billing.   Again I never ordered the magazine, when I called the number back, it was a nice man who said he didn't call me, he sell's car parts.   Sounds like magazine scam and the caller ID is programmed with a fake number.