Undelivered Residence Permits are being held for one week at the PTT sorting office round the back of Otogar and then being taken to the Passport Police for collection. Apparently they have lots awaiting collection.
If you are waiting for a new Resident Permit. Go in person, with your passport, to the sorting office, if it's not there, they will advise you if it's been sent to the police station.
Copied from Facebook posted by Lynda, wife of Yakup who has helped many people apply for their new permits, based on information given to them by the PTT who popped around to tell them.