I have some of the letters on my tablet here. I've looked at them. At least in one case, the birthdate is different on the letter from the passport and the visa that was given. That person was still able to cross the border and CBSA let them in, even though there are three different birthdates on three different ones.
We've heard now that there are 87 cases. Is it the same visa officer who reviewed them all and issued the study permit or are there multiple different officers who issued them, or is it a machine?