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A Google Webmaster Help thread has one webmaster that needs help controlling how GoogleBot crawls his sites. He said the controls in Google Search Console are not doing it.
John Mueller said that he can use the link on the bottom of this form in order to contact the crawling team.
John said "they're usually able to help with these kinds of requests."
So if you need special help with Google crawling your site, then you can use that form.
Although, generally, you want to make sure your server can handle the crawl from Google. Of course, there are plenty of bad bots out there but GoogleBot, you typically do not want to restrict too much.
Forum discussion at Google Webmaster Help.
