Is this related to this Reddit post? If so, here is the same advice I posted on there.
If you have access to the email address that created it, you can remove it from your dashboard. This should delete the duplicate profile. If it doesn’t, you can use suggest an edit to make it as closed, doesn’t exist here, or as a duplicate. If none of that works, you can send me the link to the duplicate and I can see if I can get it removed.