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Since the "important pages" have been removed "by request" leads me to believe somebody with access to your GWT has manually requested to remove the site from Google via the URL removal tool.  You should be able to see who has access to your GWT and who removed the URLs within GWT. Just go to "Google Index" then "URL Removal" then click on the select box to the right to see the URLs that have been removed by others. You should be able to resubmit the site/URLs to Google afterwards.

idk if this would help, but Bing looks at Geo Meta Tags when Google does not (ie claims not to)