Thanks for posting your question in the Microsoft Q&A forum.
Here are some steps and recommendations to address your issue. First, double-check your domain settings to ensure that the domain name in your Founders Hub profile exactly matches the one you're trying to verify. Verify that you have added the correct DNS records (TXT or MX) as specified by Azure for domain verification. After making changes to your DNS records, wait at least 72 hours for the changes to propagate fully before attempting verification again.
Next, review your verification documents. Ensure all supporting documents are dated within the last 12 months. Make sure there is an exact match between the startup name and address listed in your documentation and the information in your Founders Hub profile. If there are any discrepancies, update your profile information in Founders Hub to align with your verification documents.
If the issue persists, submit a support request through the Founders Hub Portal. To do this, sign in to the portal, select the "?" icon in the top-right corner, and choose "Submit a Support Ticket." Be sure to attach all relevant documents and screenshots of errors to your support ticket. If domain verification continues to fail, consider alternative methods for business verification, such as providing incorporation documents or other official business records.
Finally, be patient with the process. Verification can take up to seven business days. If you have submitted a support ticket, allow sufficient time for the team to review your case and provide assistance.
Please don't forget to close up the thread here by upvoting and accept it as an answer if it is helpful