About a month ago the right cup just died on my Sennheiser PC-350s so I sent them back on warranty. They came back a few days ago with a note saying they tested just fine and there is nothing wrong with them, but there is something wrong with them. (I think)   Whenever I use them on my PC...

I don't know how but I somehow managed to get a perfect clean cut on the headphone cable of my PC 350's, the mic cable is in perfect condition though. Will Sennheiser Canada fix this under warranty? I sent them a support request over a day ago on their website with no reply and their support...