Please find information below which will help you to submit a report
Information about reporting
If you have a concern about particular URLs or other information contained in search results, you may report these to Bing. Reporting a concern will not necessarily result in removal of a URL from search results. Bing limits removal of search results to a narrow set of circumstances and conditions to avoid restricting Bing users' access to relevant information.
Bing doesn't control the content that websites publish or that appears in Bing search results. To make sure content is removed from search results, your best option is to contact the webmaster for the website that published the content and request that it be deleted or removed. Even if Bing removes the URL from search results, it will continue to exist and can be discovered by going directly to the web address until the webmaster removes the content from their website.