I restricted a user from seeing my Wall posts, but they can still see my Wall.

Restricting a user from seeing your Wall posts does not restrict them from seeing all the stories on your Wall. While the user will not be able to view Wall posts that you or your friends write directly on your Wall, they might still be able to view stories about your activity on the site, stories about content you have uploaded, or content that your friends uploaded to the site and tagged you in (if they are otherwise not able to due to restricted privacy settings).

To update who can view content that you post:

1. Choose the "Privacy Settings" option in the Account drop-down menu at the top of any Facebook page.
2. Select "Customize settings" in the "Sharing on Facebook" section.
3. Update the "Posts by Me" section to a more restricted privacy setting. For example, if you do not want a certain person to view content, click on the drop-down menu next to this section, select the "Customize" option, and then type the person’s name in the "Hide this from" field.