give them time....They probly didnt even start looking at your order until today some time. Then add in that they are SUPER busy and you will come to the conclusion that waiting is all you can do.
Call them, though I would like to know what you ordered as they were out of a lot abut then. I placed my order around then and got my bullets last week becausae they needed to do a run of one type of bullet to finish my order. The rest of my order was boxed and ready to go.
If all you got was a PP receipt then you are on target still, they don't send you any special confirmation other than the paypal receipt. Once you get the paypal receipt the next thing you will see is a shipping notice.
You actually get noting direct from IN BULLET, the first receipt is from PP and the shipping notices is from one of those postage programs the post office uses.