google listings updates calls 3x a day

Third time today that this number has called me.  Really, isn't there a way to keep these telemarketers from calling.  My phone is both personal and business...but I shouldn't have to deal with these morons.

Oscar with google/scott $200.00 for a listing. UNKNOWN CALLER until you call back.

Tired of getting these calls 2 and 3 times a day!  Sometimes they answer, sometimes they don't.  What a poor way to conduct business.