I put a $500 deposit on a vehicle in January 20th ...

I put a $500 deposit on a vehicle in January 20th with promise that the vehicle is going to arrive between January 26 and February 3. On February 17th I decided to buy from another dealership that had the vehicle of my choice in stock. Since February 17th I'm waiting for my security deposit back. No response to my emails. When I call they tell me another department is dealing with it. Today is March 7th and I still don't have my $500 back.