So? Whats the deal on M40 parts?

Well, I think I got on Steyr USA's bad side for asking too many questions about my cracked slide, and now they won't respond to any of my e-mails. They told me that my Steyr is fine to shoot, crack and all, so I left it at that. Anyways, it's gotten to the point that I simply cannot shoot my M40 anymore without replacement parts. I am in desperate need of a new drop safety (which broke a few thousand rounds ago), and now I really need a whole new set of springs. My recoil spring has gotten to the point where it is no longer safe to fire the pistol (i.e. it won't return to battery on the "vertical ride-the-slide" test). So, what's the deal with replacement parts? Who can I contact? As I said, I have repeatedly mailed Alan Cornett at Steyr USA asking about this, and have recieved no response. Anyone? Thanks for your help.

James