After reading your two posts I am starting to believe that you don't quite understand the crew packs and what they are used for. The crew pack with the whistle and smb is the Adventures in Diving Crew Pack (AID) which can be purchased for students that are going to take the ADVANCED class.. The AID Crew Pack with the whistle and smb is not for Open Water students. The AID crew pack comes with an Adventures in Diving Manual, not the Open Water Manual, student folder, logbook, etc....
For new Open Water Certifications you can use the Computer based Open Water Crew Pack or the RDP based Crew Pack.. There is not currently an Open Water Crew Pack available that includes an smb and whistle.
My apologies if you knew all of that, but it seems like you were mixing things up. When your instructor uses up his OW RDP crew packs, he won't be switching to the crew pack with whistle and smb, because that's for Advanced certifications, not Open Water certifications.