You cannot delete an H&M account.
You can contact them and complain here: http://www.hm.com/us/en/contact
URLS:
http://hm.com
Please note that AccountKiller.com is not associated with the business listed on this page. AccountKiller provides easy-to-understand instructions and guides on how to cancel charges and relationships from the list of businesses on our site, we have no affiliation with these businesses.