Some of the posters might need to take a long slow breath, or maybe take a heart pill.
You haven't been had. Galco Gunleather isn't going to be scamming people for $81. It's not uncommon for an item to be in stock, the last one be sold, and then another one be sold before the website gets updated.
Ideally a retailer should e-mail you to advise you the item is back ordered and give you the option of keeping it back ordered or canceling the order. Check your spam file and you might find the notification.
Also, on most credit cards you have 60 days after the charge is posted to contest the charge. But before you call your card company:
1) check to see if the card was even charged - many companies will wait until the item is ready to ship to charge the card; and if they have
2) call Galco first to cancel the order and get your card credited. You can't contest a charge just because an item is back ordered, unless the merchant refuses to cancel the order.
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With that said, if you have to wait a couple months to get a non custom item should be in stock, it opens up lots of options, such as getting the same item from another retailer sooner, or ordering a custom holster that could be delivered in the same time frame.
I also agree with the suggestion to check your local gun shops. It's just not possible for a local gun shop to stock every possible item, so on-line is often your ultimate destination, but I always try to give the local shops a try first. It's in my interests to keep them in business and I'm willing to pay a little extra to keep the local purchase options open.