Yeah we've had problem with that in the past. People impersonating others over the contact form. Now, our admins just ignore any requests to change an account or give out account details. So basically, if you were to say, lose your email and SC account password, you'd have to make a new account. With your problem though, the submission will defiantly be removed, just make sure to supply them a link to it.
Voted Best Nazi Mod Ever <3