Many Blogger / Google procedures involve email communications, with you needing to read - and respond to - email from Blogger / Google. Some email systems automatically sort incoming email, and put important (and not so important) email into different folders. Many times, email from Blogger / Google may be sorted into a folder where you would not always normally look - or may be sent to an email address that you might not think of, immediately. It's to your personal advantage, to find any email that is being sent to you - even stuff in Bulk / Spam.
What Blogger won't tell you