Hello,
Thank you for posting in Microsoft Community forum.
Based on the description, I understand your question is related to bitlocker and 30 day security code.
Unfortunately, the 30-day waiting period for changing security information is a security measure that cannot be expedited. This period is in place to protect your account from unauthorized access.
What does “Security info change is still pending” mean? - Microsoft Support
Here are a few steps you can try: If you have other recovery options set up (like an alternate email or another phone number), you might be able to use those to access your account. Or check if you have saved your recovery key in some other places such as USB, a printout...
Have a nice day.
Best Regards,
Molly