Called. I didn't answer, they never left a message. Going on the blocked list.

Update. I just called the number back, blocking my phone number. I got a recording that said " Thank you for calling. The survey we just called you about has now finished." What a crock of crap! Already been blocked. :-)

Just got a call from this number.  No vm was left.  Adding to my block list now.

Just received a call on my cellphone from this number. No message was left. Anonymous callback reached the recording mentioned below, but was all broken up and extremely choppy sounding. Adding to my block list.

Received call from this number, Google immediately and come direct me to here. Blocked.