Trying to purchase parts for my '90 911

I've been cruising through this board and many here seem to know a lot about Porsches. I recently went through a horrible experience trying to buy Front Cross Drilled Rotors from Performance Products. They sold them to me but shipped me slotted. When I called their distributor they said they don't make Cross Drilled Rotors. Anyway Performance Products refuses to own up to the fact that they sold me a product that they can't get, possibly doesn't exist. Has anyone here experienced any problems with that company?

I would stick with the slotted rotors myself. They are much more resistant to cracking. Cross drilled rotors will crack. They all do. That's why high-end race cars use only slotted rotors.

Chris