Autodoc complaint: Liars

Hello , i have a very big concern regarding AutoDoc! They sell products that they don’t even have it on shelter and because of this me as costumer i must wait a lot of time until i get my order ! The problem is that AutoDoc don’t inform you that the product is not on shelter and when you contact them to see what is happening with your order they start to Lie and saying that the order is being prepared, next day they say that they wait the courier to pick up the order ,next day they say that it was an error and they didn’t have the product on shelter and they must wait the product to arrive from the supplier….and just like this 1 week is gone and i wait like an idiot with my car in service paying for every day extra ! They don’t want to tell you that te product is not on shelter because they know that you will cancel the order and they don’t want to lose it ! I will hire a lawyer and i will go to court because this is not possible! I am not their joke.thank you