They got back with me but I'm confused. I have preordered multiple items before but never had this happen.
Support Prinny (NIS America, Inc.)
When an order is placed with multiple item release dates, the full order will ship only when all items have been made available from our warehouse. So, in this case, your order of Nights of Azure Limited Edition will be on hold at the warehouse until it is able to be shipped together with Grand Kingdom Grand Edition (PS4) after it is released in June.
I'm willing to bet davifus, that if you have something else on order from them this will be the reason why too.