Hi,
Microsoft Certification is currently not supported in the Q&A forums, the supported products are listed over here https://learn.microsoft.com/en-us/answers/products (more to be added later on).
You can ask the experts in the dedicated Microsoft Certification Profile - Account Linking forum over here:
https://trainingsupport.microsoft.com/en-us/mcp/forum/mcp_prof-mcp_link
Something here might also help:
https://support.microsoft.com/en-nz/help/2966380/how-to-link-or-unlink-a-mcp-id-to-a-partner-organization
(Please don't forget to accept helpful replies as answer)
Best regards,
Leon