I ordered some parts from them 10 different items...

I ordered some parts from them 10 different items, 7 of the items were shipped from one warehouse by USPS and arrived just fine the other 3 items were shipped from a different warehouse by FedEx, they claim they were delivered but I never received the items, after filling a request to find items the just closed the invoice and now refuses to refund my payment, I consider this fraud and will never purchase another thing from them again. I will inform any one who ask me if the should purchase from Rockauto my answer will be only if you wish to be cheated.