Go out and reload your computer and try it. Sometimes that works ...also try deleting your cookies and temp.files if that doesn't work. One or the other should.
Just make sure you have used the same case here and in Ebay for your password, normally lower case..and make sure you clicked submit at the bottom of the page.
Since we’re blue-skying here, have you tried signing into ebay today? Sometimes added security is added if ebay thinks someone is trying to hack your account.
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .