Hi everyone, I have just graduate from an university, so I sent out my application for a post-graduation work permit in the end of July. Now I received a letter says Canada Immigration Centre in Douglas already issued me a document that is expired on Jul.5, 2015. I hold a study permit which expired on Jul.31, 2012, so it must not be me. My only guess is that someone took my information to get a leagal document?What should I do? Who should I contact? Is there anyone who can help me? Thanks a lot!