I have it in my account, I think you can see that they had send something in CAS. Like in my case they sent a letter in January for my wife finger print fee and I can see it in CAS.Wait no I'm saying I have it. You can't see letters on CAS, you have to create an account and link your application to it. What I understand from what you are saying is that you don't have it linked to your account and track your application through CAS and not your IRCC account. Once you link it you may or may not have it and it doesn't really mean anything I think. I have the letter and mine is estimated to be finished on November while those who don't have it are to be finished on October.