This is not Google. It is a third party company that is trying to scam you. They are promising that you will get more hits on your search if you pay them money. It's a lie. Google has always communicated with my company via USPS.
They somehow got ahold of my cell. Started with the usual "1 rank on google, unlimited clicks, we are google" elevator pitch. I keyed through to speak with a rep and requested that they remove my #. The rep was not amused and hung up before I got through the area code.