I'm having the same issue—submitted an app for review a few days ago and it was also rejected due to no results being returned by my implementation of MKLocalSearchCompleter. I haven't been able to reproduce the bug that App Store Review has been describing on any devices or simulators, even with location services turned off.EDIT: It appears as though App Store Review is experiencing a "The request timed out." error. I submitted a new binary that displays the MKLocalSearchCompleter's errors in an alert.