This is based from one good member in April application forum:
Try giving those a try:
1. Log in with GC Key account
2. Permanent Residence - Family Class (Spouses)
2. Application Number and Family Name - Copy/paste application number from email (including the F) and enter PA's last name
3. City of Birth - enter 1 space (hit spacebar once)
4. Country of Birth - Select PA's country of birth
5. Passport Info - Do not enter any passport info
6. Other Application Info - Fill out the other application info as per your application and put '2' as the number of members in the application for sponsor + spouse (add +1 per dependents)
OR...
1. Log in with GCKey account
2. Permanent Residence - Family Class (Spouses)
3. Application Number and Unique Client Identifier (UCI) - Insert application number and UCI from email
4. City of Birth - Insert PA's City of Birth
5. Country of Birth - Select PA's Country of birth
6. Passport Info - Insert Passport number, issuance and expiration info
7. Other Application Info - Fill out the other application info as per your application (Province, City and marital status) and put '2' as the number of members in the application for sponsor + spouse (add +1 per dependent, if any)
8. Click on the 'Search for my application' tab
9. Then on 'Link my application' tab
OR...
1. Log in with GCKey account
2. Permanent Residence - Family Class (Spouses)
3. Application Number and Unique Client Identifier (UCI) - Insert application number and UCI from email
4. City of Birth - Insert PA's City of Birth (LEFT THIS BLANK)
5. Country of Birth - Select PA's Country of birth (LEFT THIS BLANK)
6. Passport Info - Insert Passport number, issuance and expiration info
7. Other Application Info - Fill out the other application info as per your application (Province, City and marital status) and put '2' as the number of members in the application for sponsor + spouse (add +1 per dependent, if any)
8. Click on the 'Search for my application' tab
9. Then on 'Link my application' tab
It's also good that you've submitted a report on that issue. They usually take a while before they respond and/or fix the issue.
Not really sure if not linking it online will slow down the process.
They have a number on their website that u can call only if you're in canada. Many applicants say their number for outside canada is somewhat not working.