Currently, Microsoft does not allow for extensions of Azure sponsorships beyond the standard period. Once your sponsorship period ends, you will need to reapply to regain access to the benefits. Therefore, I recommend preparing to transition to a pay-as-you-go model once your sponsorship ends on December 20th.
If you have specific needs or circumstances, you may contact support through the Microsoft for Startups Portal for further assistance, but extensions are generally not available.
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