There is no need to ask MLC to send you completion reports since those that are entitled to view completion reports (course teachers, compliance officers, HR, etc.) have access to such a report in the course in question.
If you have the permissions, use the course completion block on the right hand side of the course page to access the report by clicking the 'view course report' link.
Those whom may not have the necessary permissions should contact the regional training administrator their region. The training administrator will provide you with the report after considering the request in line with the the MLC and global privacy policies: notably that of your having a legitimate interest in the information.