Hello Sathis Raj
Thanks for your question
Extensions are not guaranteed.
The best option, I would recommend is you should reach out directly through the https://foundershub.startups.microsoft.com page, click on your profile or benefits dashboard and Use the “Support” or “Contact Us” feature to explain your case.
You can mark it 'Accept Answer' and 'Upvote' if this helped you
Regards,
Abiola