When i returned my PS last fall I called them...I can't find their number either sorry. Sneaky sneaky
It went really well. I did an advance RMA(power supply wasn't burnt out, just didn't reboot without taking out power cord(i got tired of doing that)), and got the PS in like 4 days.
Sent the broken one back, and that was it.
Go register at the cm company forum and post your problem. They monitor their own user forum not this one. I had to do it to get my top io panel replaced. http://forum.coolermaster.com/viewforum.php?f=29