Minecraft migration account issue

Hi, recently i wanted to try and play minecraft again however I seem to have lost access to my original account. When i try login its saying that the account has been migrated however, i'm unsure what email address it has been migrated to as my only microsoft email is the one im currently sending this request through and that has a different minecraft username to my original. Would be much easier to explain on a phone call but yeah I need a member of the IT accounts team i pressume to help me retrieve access.

:)