Depends on where the return address is in the application. You were given a timeline until when/within when to submit your PPs in your PPR letter right? And in that same PPR letter - there is a statement there that reads the duration within where CEM will endeavor to return - can you check that statement? Usually the range specified by CEM is to return the PPs within 90 days - it may differ from applicant to applicant.
Typically if the return address is outside of the PH then the return time ranges from 3 - 5 weeks (based from returns to applicants from ME and Canada who posted here). Typically if the return address is in the PH - return times are much faster, 2-3 weeks or even a week less - depends on the location (MM vs provinces) - based on the posts here. This assumes no more added verification on the information in your PPs against that included in the application and in the supporting docs (i.e change in marital status, birth of a child, change of address, etc.)
Note return times could be counted from the time the PPs are received by CEM (CEM may differ
), so if you have a tracking receipt when you couriered your PPs, then add 1-2 days for CEM to open the package, and then start to verify the details in the passports against the information in the application, print COPRs and stamp the passports and send the PPs back.
/hope this helps....