Blogger vs WordPress Blog

You have to gain access to the site first.

What I post below applies only to sites hosted by wordpress.COM.

You must be logged in under the exact same username that registered the site to be able to access the site. The Admin login link to the dashboard for every blog hosted by wordpress.COM is:

http://NAME_OF_BLOG.wordpress.com/wp-admin/

If you are not logged in under the correct username account then clear your browser cache https://en.support.wordpress.com/browser-issues/#clearing-your-browser-cache and cookies https://en.support.wordpress.com/browser-issues/#clearing-wordpress-com-cookies and then login correctly under the relevant username account.

If the login information has been lost go tohttps://en.support.wordpress.com/passwords/https://en.support.wordpress.com/passwords/#lost-password

If required use the account recovery formhttps://en.support.wordpress.com/account-recovery/https://en.support.wordpress.com/account-recovery/#account-recovery-form

If you do not have the required access and someone else registered the site you need to contact the person who registered the account and site under it and have them transfer the sites to your username account by using this process. http://en.support.wordpress.com/moving-a-blog/#transferring-your-blog-to-another-user-or-account

I'm not even sure which email address this site is attached to.

If you check each and every possible email address and account and are not successful gaining access to the blog(s) then you must complete the form for account recovery at this link https://en.wordpress.com/wp-login.php?action=recovery and submit it to the Account Recovery Staff, and provide proof ownership, so they can contact you by email ie. not on these public support forums, which are available to everyone with internet access.

Support Staff cannot breach the privacy policy and provide the log-in information. You have to provide proof ownership to Account Recovery Staff to gain access https://en.support.wordpress.com/account-recovery/

Source: delete blog