Personal MS-account also registered to non-existing tenant

Many moons ago, I dabbled with a tenant for my domain. Had forgotten all about it until I got the prompt to choose between 'Work or School' and 'Personal' account. I own the domainname and have probably once in the past created a tenant for it and never thought about it again. When I log in to Azure with my personal account there is no tenant, so it has probably been deleted years ago. Is it possible to have MS check this and 'untick' that box? And how?