Google has updated the help document around how to request ownership of a business listing in the Google Maps and local area. Google wrote on Twitter "we've updated our Help Center article on requesting ownership of a verified business."
We've updated our Help Center article on requesting ownership of a verified business. Check out the updated article to learn more! https://t.co/6npHBjeWM5— Google My Business (@GoogleMyBiz) January 5, 2018
You can see the before version on the Wayback Machine which is much more abstract then the new more detailed write up that is over here.
So if you need help here, this might be the document you have been waiting for.
Forum discussion at Twitter.