hey guys, they called me too. its an education service that you either clicked on their website and they got your number or they called you back for you showing interest somewhere in one of their services.  heres what I did and they stopped calling me.
I dialed  *67 412-405-6124  the *67 blocked who I was ... then an automated service answered and asked me to enter my phone number for their 'do not call list' they havent called me since. hope this helps!!!!