Hello, are you applying inside/outside Canada?. Is the P.A. From mexico?? Well I got the same issue, my police certificate was requested from v.o. Mississauga on November 15 but never got the specific letter just an email from the office asking for my police certificate, anyways when I tried to contact Mississauga v.o. they said that probably it was a mistake and I have to wait for indications from México v.o. Since I'm applying from outside Canada And they couldn't help me because my application was already transfered to Mexico, then I contacted v.o. Mexico and they ask me to wait for further indications until they review my application. On December 1 the asked me to renovate my passport and send a copy but nothing about my police certificate so now I'm just waiting, I think you should try to contact them because you can't not get the police certificate without that letter.