I placed an order with Amazon on Feb 3rd. 4 items in total.
One of the items is a CD that is not released till the middle of March. All the other 3 items value is enough for free shipping. I am not a Prime member.
They are holding my total order till next month so it can all be shipped at once.
I don't ever remember them doing this before. Was expecting my order of 3 items then, receiving the CD on the release date.