Hi Gaurav Mishra,
For focused and dedicated assistance with this issue, please file a subscription ticket with our support team. You can submit a (free) support ticket with our Azure subscription support team by creating an Azure support request and selecting Subscription Management as the issue type.
Refer to this FAQ: How do I submit a support request if I can't sign in to the Azure portal?
You can also contact customer service for your country or region.
Please don't forget to Accept helpful answer and close this thread.
Thank you.