I am not sure how does IRCC account works, I tried many times but was not able link file with IRCC account, every time it showed up, file does not exist. So, I am relying on email communication and web forms to communicate with IRCC.
Also, try calling IRCC some time they pick up the call and will update whether document has been received or not or atleast IRCC representative will update you that they are working on your document that u sent.
If they pick your call - "KEEP YOUR QUESTIONS READY" they will give u short and precise answers.