Here's a fact-based summary of what you're facing:
- A study permit was required. A TRV was not sufficient for the studies you had planned.
- Even if a TRV had been sufficient, IRCC was under no obligation to approve the TRV.
- Before applying for a TRV, you applied for a work permit extension when your PGWP was expiring although you didn't qualify for an extension. IRCC views this as an abuse of the work permit process. If you go to your MP for assistance or decide to fight the TRV refusal, be prepared to explain why you applied for a work permit extension when you knew you didn't qualify for one.
- Ensure that any work experience you gained after your PGWP expired is not included in your work experience calculation for CEC / EE. IRCC will not count any work experience you gained after the PGWP expired and while you were waiting for the results of the work permit extension. Since you didn't qualify for a work permit extension, this work experience is classified as illegal work and cannot be counted towards PR.
- A study permit was required. A TRV was not sufficient for the studies you had planned.
- Even if a TRV had been sufficient, IRCC was under no obligation to approve the TRV.
- Before applying for a TRV, you applied for a work permit extension when your PGWP was expiring although you didn't qualify for an extension. IRCC views this as an abuse of the work permit process. If you go to your MP for assistance or decide to fight the TRV refusal, be prepared to explain why you applied for a work permit extension when you knew you didn't qualify for one.
- Ensure that any work experience you gained after your PGWP expired is not included in your work experience calculation for CEC / EE. IRCC will not count any work experience you gained after the PGWP expired and while you were waiting for the results of the work permit extension. Since you didn't qualify for a work permit extension, this work experience is classified as illegal work and cannot be counted towards PR.