When we set the physical release date for a title, this is an estimate for when the stock will become available for shipping. Obstacles such as shipping delays, container shortages, printing delays, and more can pop up and affect these timeframes. With these things in mind, we try our best to get titles in and shipped out as closely as we can to this estimated timeframe. The best place to go to determine if a title has begun shipment is here on our forums but you can always send a message to us through the contact support link to see if there are any delays, as well.