Amazon facing issues with The Binding of Isaac: Afterbirth+ shipments

If you ordered The Binding of Isaac: Afterbirth+ from Amazon, you might want to keep tabs on your order. Hopefully most of you got your game already, but if not, there could be a shipping issue. Some people are getting emails saying that the order was oversold, meaning shipments won't go out, and Amazon is unsure if/when they'll get more stock. On top of that, some customers are saying their orders are indeed still coming, but shipping dates keep getting bumped by a day or two.