Nalley Toyota of Roswell

I found vehicle on Nalley Toyota website. Spoke with Salesman and sent in finance app online. They called me back and said financing was approved and vehicle was ours. On our way to dealership I received a phone call that vehicle had just been sold. This is after my financing was in place. I now have a hit on my credit report for a vehicle that was already sold. Awful experience. They ask if they could help me with another vehicle and I said no that I would look elsewhere and their final response was "okay-good luck".