I wonder why educational institutions do not guide students that if they study part time, it may affect PGWP application. I still believe u may get PGWP as u did study full time for 4 years at a recognized institution. If your completion letter says that u were a full time student, u shud not worry. Even if it does not, I have feeling that if you worry and send in Case Specific Inquiries, it may confuse the officer further unless you write it very clearly and concisely along with reasons/limitations. General approach is to keep use of Case Specific Enquiries minimum as it is more paperwork for officer, thus, more delays (delays are not bad if the other alternative is sure rejection but depends if u r waiting for too long, u might as well wish that application gets rejected earlier rather than so late).
Think and write your options and evaluate what to do next.
Best wishes,
