What I did was: I opened the page in my browser. Reloaded in after a few minutes. I repeated several times with a few minutes gap. It worked for me. Tell me if it worked for you also.
I don't think that was the reason why GoogleBot visited your website. It must be because of some incoming links. Btw, this section is meant for Adsense discussions. Perhaps a mod can move this thread.
Google will not recrawl your site based on how often you refresh your pages. It will take other factors into account: how often google crawls - factors The google adsense bot does crawl quicker on pages that get more visitors. Refreshing a page may help it get a bit faster to a page, to check it's content and decide on appropriate ads. But even then I do think it's a coincidence that the ads got better immediately after refreshing. Even the google bot is not that quick.
Well, it does show up based on refreshes IF there is adsense on the page. If you have access to your logs, call up a page and you'll often see the bot (one dedicated to ads I'm assuming) retrieve the very same page. I don't think it's doing any content indexing, though, probably more for the ad targeting.
Sure that's what I meant - if the page isn't getting any visitors that's a way to get the adsense bot there early. But I doubt they will get more targeted ads there within a minute or so. There is communication between the adsense bot and the google search bot on content. But it's an open question how often that information is swapped. From my own site I'd say: not that often.
No,There is No Way to Call. One Thing you can do is to Build few Quality Backlinks Before Google Submission.Your Site will be indexed in a hour.