Just got a call from this number as I was going through bedtime routine with my children (It's 8:30 PM), and I attempted to call back but got a recording saying "Sorry, the number you have called is busy!"- in a very cheesy-sales-ad-voice. So, I hung up and have now blocked the number.
Called my cell while I was at work, 3:17 PM...I don't answer unknown calls and couldn't while at work anyway. Left no message, I ave no intention of calling back.