It's bologna. Claiming that I need to confirm something with "Google" about my business. 800-303-9059 number at the end of the message leads to nothing online. Sorry, it's 2017, if you don't have a presence online I don't trust you.
Received a call from this number. I picked up and no answer. Call ended about 15 seconds later. Call back with 2 rings and no pick-up, then message saying 'This number is invalid'.
Got a call from this number. I didn't answer but they left no vm. Have gotten calls before as others have reported. They try to make you think they're Google but they are not. They are scammers. Google doesn't call people unless you have a specific problem with your maps business listing and you called them first for help. These scammers will call from different numbers so you will have to block each one when they call.