I absolutely agree!! You SHOULD get in touch with Indy and tell them the whole story!!
Yeah, if you're lucky you'll get the right springs for the cost of shipping or something.
You'll never get un-ripped-off by that jerk; you'll never get the satisfaction of telling him off. Springs are cheaper than lawyers. He's not worth you getting an ulcer over (or arrested for punching him shoudl you see him at a show). Move on.. he won't, and will probably get his just deserts by accumulating ill will, peeing in the pool. Word travels fast in the electronic world... your reputation is what matters!