I think that is just a copy of your winner letter. My DD has that file (it's a copy of what was mailed) and she has not uploaded her acceptance/intent letter yet.
When you uploaded your intent letter, did you select "Letter of Intent and Acknowledgment" for the file name? I believe that is what should be approved.
When you uploaded your intent letter, did you select "Letter of Intent and Acknowledgment" for the file name? I believe that is what should be approved.