Today when I was able to finally link them, I had to go by name & birthdate (as it never acknowledged the UCI or application # I was given).
I tried his first name only (he's Egyptian so there are like 5 first names, lol) and last name, I tried 3 then I tried 2 (people).
Then I tried all 5 of his names (like on the passport) and I tried 3 then I tried 2 (people) and was successful.
I thought maybe they put the wrong place we were going to settle. Maybe they spelled a name incorrectly.
Leave out the passport info, the less you have the better (or so I read somewhere else).
Name, birthdate, city born, country born, place to settle, 2 people, that's it!!!