Write them to CSE (IRCC Webform ) and ask about your UCI number, and file status. Send repeatedly,
https://secure.cic.gc.ca/enquiries-renseignements/canada-case-cas-eng.aspx
fill it like this :-
Type of Application
Choose "Permanent Residence, Applied by Mail"
Type of Enquiry
Choose "Permanent Residence, Provincial Nominee"
Your enquiry
Ask you queried here.
Fill out the information related to the boxes. Write Application Number. Tick the box, I agree, at the bottom left. Then press "Next" button.
The second page will open. If have to send some papers then you can upload here.
Press YES or NO. As per circumstances.
Third page will open. Click next.
Enough.