I ordered calipers and rotors from them. I got a p...

I ordered calipers and rotors from them. I got a phone call saying "our system had an incorrect quantity of this part and it is unavailable. please choose alternatives" so i went to the website, which said "the parts we informed you were out of stock are back in stock. click submit to continue with the order". BUT the shipping fee was 70 dollars higher! a week later of emails and phone calls, they tell me that the parts are coming from a different warehouse so the shipping charge is different, but they refuse to cover the extra charge, despite the fact that it was THEIR system that had an error. i bought the same parts from Advanced Auto for the same price. don't do business with these extortionists.