Another mistake that I made when trying to link the first time was I was using my wife's (sponsors) UCI # instead of my own (PA, which I didn't have yet) so maybe give it a shot with putting in the app # and last name or somethingIf this is for gckey, there are several different ways to identify, try different ones until you have some success. (I can't recall them all - I know place of birth didn't work for us)