OHS Powersports

I placed an order on Amazon on an item that they said was in stock, and several days later, I still did not get a shipping notice, come to find out that the item was not even in stock, and they did not even attempt to notify me ! I had to call, and no one answered, so I left them a message (and they never called back, like most people now a days)
so I emailed them and finally someone emailed me back saying it was out of stock, the customer should not have to go through all of this.
If an item is out of stock, it should not be advertised as in stock, or at the very least, they should notify the customer that it is out of stock.