Has anyone else had any dealings with SFRC/Ammo Source recently?

I made an online purchase from them on the morning of the 25th of this month - 4 days ago.
By that afternoon, I received an e-mail stating that the status of my order was now "processing".
The projected delivery date as quoted by their website was the 28th of Sep.

I haven't heard anything more from them to date - no notice of having been shipped, and no tracking number.
On the evening of the 27th, I left them a message using their "contact us" feature on their webpage, figuring that they would have all of Friday to respond.
No response on Friday, and still no response thus far today.
The purchase amount has been charged to my credit card.

I'm really not quite sure what the problem might be, but a response to my enquiry would have been reassuring, and would have negated the need for this post.
Is this standard operating procedure for this vendor?