i have called severally, requested for the GCMS to no avail. other than waiting is there any way one can "remind them" they have a pending job to do?
How are you applying for the GCMS notes? When I've done, every single time there is a confirmation email from the ATIP system that the application for gcms notes has been received.
IRCC does not provide a request number, CBSA does - and overall I've found the CBSA request system (through the main ATIP portal, which requires a gckey) to be easier and feels more solid. At least on the ATIP portal, you also have the option to request to receive the notes through the portal instead of email, which removes a (potential) point of failure, i.e. if your email marks it as spam or does not receive it. (I believe if you ask for it by email it's actually available on the portal AND on email, but not certain.)
The main government-wide ATIP portal is here:
https://atip-aiprp.tbs-sct.gc.ca/
I can't walk you through it, but you want to ask for own personal information, CASE FILES (not personal corporate records, which is for eg employees), and immigration file - gcms record.
YMMV. While the IRCC atip request portal is somewhat different, I've never had a problem getting the results. For both, timing can vary - I once got IRCC notes in a couple of weeks, but CBSA has usually been faster, although either can extend the 30-day service period to 60 days by notfying the applicant.