Hello Olumuyiwa,
Thank you for reaching out to Microsoft Community.
Based on your inquiry, we understand you require assistance with missing a certificate.
We see there was a delay in the generation of certificates that have now been corrected, please note you will now see it in your account also below we leave the ways to get your certificates.
here we leave links that can help you with connecting your account and seeing your certificates:
Use and share certification badges | Microsoft Learn
Connect a certification profile to Learn | Microsoft Learn please check this one first
View and share your transcript | Microsoft Learn
All documents say certificates tab but that changed and now there is under the Credential tab.
Please let us know if there is anything else we can do for you. If the information we shared was helpful, please let us know by choosing “Yes” where it says, “Did this solve your problem?” located in the bottom right corner of this post. This will let us know if your support experience has been great or how we can improve it. In case we do not receive a response, it will be closed and locked after one business day.
Have an excellent day,