nyteach:I don't think you need a letter from the school. You have to print out the email that they sent when you completed the online form as a confirmation and then attach it to your transcripts when you mail them in. I chose the GHI Blue Cross Blue Shield. Where were you looking at the plans? I could not register online so I sent in a paper application where you write in your choice. When I called HR yesterday for an update, they said I had chosen GHI/BCBS, so I guess I did it right? IDK maybe you can call if you want to make a change before Oct 2?