Hi Anurag Pundir,
Thank you for contacting us from the Microsoft Q&A forum.
To resolve issues related to phone validation during the Azure account creation process, we recommend the following steps:
1.Try Using a Mobile Device: Some customers have resolved their issues by trying the same process from a smartphone browser. If you haven't already, consider using your mobile device to see if that helps.
2.Check Phone Number Requirements: Ensure that the phone number you are using for verification meets the necessary requirements. Note that Voice-over-IP (VoIP) numbers cannot be used for this process. Make sure your phone can receive calls or SMS messages from a United States-based number, and double-check the phone number you entered, including the correct country code.
3.Troubleshooting Resources: For detailed troubleshooting steps, please refer to this guide: Troubleshoot Azure Sign-Up.
4.Contact Customer Support: If you continue to experience issues, we recommend contacting Microsoft Support directly. You can find the customer service phone numbers specific to your country here: Global Customer Service Phone Numbers. When you speak with a representative, inform them that you are unable to validate your phone number, and they will create a support ticket and escalate your case to the Azure Subscription/Account Review team.
5.Creating a Support Ticket: Alternatively, you can create a support ticket through the Azure portal by following these instructions: Create Azure Support Request. If you have access to a different tenant, you can also create a support ticket from there.
Please don't forget to "Accept answer" and close this thread.