Is there a blue Request Corporate Commercial Seller button in the upper right corner after you log in to Seller Portal? If so, click it and resubmit your application.
From your screenshot, it appears that your application request is still in progress (even though it was rejected). I’d contact the Seller Portal team to find out if they are evaluating your application with the latest DUNS information. You could also take a screenshot of your updated DUNS information and include it in your message so that they are sure to have your latest information.
From Seller Portal, click Help → Contact us. Then, click Contact us at the Customer Center located near the bottom of the page (if a pop-up with “Did you mean samsung.com?” appears, close the pop-up).