Most of my certifications are expired I am unable to renew through online. Could you please provide exam voucher on all exam I want to renew?

Expired Microsoft role-based and specialty certifications cannot be renewed, and exam vouchers for renewal are not provided.

Role-based and specialty certifications are valid for one year. They must be renewed before the expiration date by passing the free online renewal assessment on Microsoft Learn. Once a certification has expired, it is no longer eligible for renewal and must be re-earned by passing the required certification exam(s) again.

There is no alternative renewal path and no process described in the documentation to request vouchers specifically to renew expired certifications. Any discounts or vouchers come only from specific promotional offers or events and must be used within their stated validity periods.

To regain the certifications listed, the required exams must be retaken as new attempts (optionally using any valid promotional vouchers or discounts that may already be associated with the Learn profile from other offers).

References:

• Credential expiration policies
• Frequently asked questions (FAQs) about renewal
• Offers
• Microsoft Ignite Challenge Sweepstakes Frequently Asked Questions
• My Certification got expired a day before, can i still get renew link - Microsoft Q&A

The renewal period is open for 180 days before your expiry date. The renewal window cannot be extended or reopened. There are no exceptions.

https://learn.microsoft.com/en-us/credentials/certifications/renew-your-microsoft-certification-faq

My certification expired. What happens now? If your certification expires, you must earn the certification again by passing the required exam(s).

There are no provisions for providing exam vouchers on an individual basis.