I ordered from Apple so I'm not familiar with BB reservations, but don't you have a receipt that has a time stamp that BB can pull up from the 15th to make a list?
You can match up your receipt to the list and have them set your phone aside.
It's not that much work to keep a customer happy. I would suggest it.
You're right, cbruce. When somebody made a "pre-order," they rang up the gift card, and the time is on the register receipt. Good idea.