Phone them. It's far too easy to ignore emails, I always phone the manufacturers when I have an issue. And make sure you get the name of the person you talk to, just in case. "Well I phoned 10 days ago, and Joe was supposed to phone me/email me/ship me and he didn't." Be polite, and you usually get what you need. I lost a backplate for my EVGA mobo when I was having a case powdercoated, they mailed me one for free. Like others have said, when they can send you a cheap part and make you a customer for life, it's a good investment.
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