Hi there, our bugzilla was updated to cover this.
Open a bug report in Bugzilla, with product "Accounts":
https://bugs.mageia.org/enter_bug.cgi?product=Accountsand select the component "Account deletion request". Then fill in the info there.
Any such account related bugreports from now on are restricted to only reporter and sysadmins, so it does not end up in any mailinglist, public or private.