No worry.I didn`t get it too.Be patient,really, if u don`t want to back china now.I have asked officer.just wait.For me,3 months too.So i can know ur feeling.
you can call this number 1-888-576-8502 between 7am and 7 pm, you may tell the person there your SIN number and he/she will help you to check when your permanent card will be ready. Good luck.