MVA learning is supported on their own forums. You can request help with profile linking / merge in dedicated forums here.
https://trainingsupport.microsoft.com/en-us/mcp/forum/mcp_prof-mcp_dash
https://trainingsupport.microsoft.com/en-us/mcp/forum/mcp_prof-mcp_incorrectmissing
https://trainingsupport.microsoft.com/en-us/mcp/forum/mcp_prof-mcp_mcid
https://trainingsupport.microsoft.com/en-us/mcp/forum/mcp_prof-mcp_link-mcp_supportother
--please don't forget to Accept as answer if the reply is helpful--