If your application is stuck in the BGC and your GCMS notes show that everything else has been completed, then it could be wither of the two scenarios:
G. What can an applicant do if his application is stuck at BGC?
If an application is stuck at BGC for a very long time, i.e. more than 3-5 months after your eligibility is cleared you have two options:
b. date and place of birth,
c. the signature of the applicant, and
d. a return mailing address as replies are not sent by email or fax.
e. If you are enquiring on behalf of another person, the request must be accompanied by the Consent Form to Disclose Information to a Designated Individual.
f. Mail or fax the request to CSIS at the attention of:
Canadian Security Intelligence Service
P.O. Box 9732, Station T
It takes CSIS 8 weeks to process these requests. Information on this is available at https://www.csis.gc.ca/scrtscrnng/index-en.php#bm02 Some applicants have successfully obtained information from CSIS.