Hello Kajal Sharma [Student],
Thanks for your question.
Microsoft Training & Certification is supported on their own forums. Please post it in one of them below:
Microsoft Training Support Forum
Microsoft Certification - Exam Registration/Scheduling
Microsoft Certification - Vouchers/Discounts/Special Offers
Microsoft Certification - Profile/MCID Assistance
You can mark it 'Accept Answer' and 'Upvote' if this helped you
Regards,
Abiola