Report these guys to Google for abusing their name and THEY will persecute the spammers:
https://support.google.com/business/contact/rbc_form?hl=en
This form is for reporting robo-call spammers who use the Google name
They have been calling for a few months now, i press 2 to be put on a no call list thry continue to call.... I have now taken it into my own hands and have been calling them non stop for about 4 to 6 hours. Telling them all kinds of crazy things, they sound pretty pissed, join in please!