This is the email I got. 
"Maintain Delivery Priority..." Got this at 12:31 PDT
Dear Apple Customer,
Were ready to proceed with your iPhone order. Your reservation is: 
Please click here to return to the Apple Online Store. To maintain the delivery priority of your iPhone order, you will need to complete your purchase by Saturday, September 15, 5:00PM PDT. If you do not complete your purchase by that time, your reservation will be canceled.
If you have any issues completing your order, please call 1-800-MY-APPLE.
Thank you,
The Apple Online Store