Valley Vet Supply / Valley Veterinary Clinic — ignored by them

I found an item I desperately needed for about 50 dollars. The website showed it in stock. It's important.
I chose the next day shipping and added that if there wasn't possible to deliver the same day, I would be glad if they contacted me. And provided my phone number.
I got no confirmation and no tracking number, but the money was charged. I called them and asked what happened and why they hadn't contacted me like I asked. They only said that my purchase was backordered for several weeks due to its unavailability at their warehouse.
Well, I don't need the item in three weeks, I want it now. Unfortunately, they don't care...