Lazarus Mazda refusing to give me a part nr

I emailed Lazarus Mazda to get a quote on a part, I also requested a part nr so that I can compare quotes like any normal person would do.

I had to request the quote two times, before someone finally rep****. Not only was the reply horribly written and very rude, the salesman flat-out refused to give me a part nr.

So what they are basically saying is, either accept our VERY expensive quote, or you cant be certain you get the right part from someone else.

Certainly if you own a vehicle that is out of manufacturer warranty, you have a right to buy parts or repair your vehicle with whom ever you see fit?

Furthermore where is a customer supposed to get this information from, if not from the manufacturer that made and sold them the vehicle?