You May be asked to Submit a Sitemap to Bing. Here is how this is done. If you don't have a Sitemap Plugin, you can install Bing's Sitemap Plugin. I am recommending a Plugin called Google XML Sitemaps. You can download the to your Word Press Dashboard and activate the Plugin.

As you see in the image above, you type the URL of your site along with the Slug, then you just add "sitemap.xml" on the end. Then click on "SUBMIT". You're done.