I purchased a Corsair Carbide Air 540 Case 10 days ago from Computer Source. The Case is great, I love it! But one tiny problem... there is a ~2 inch (but light) scratch on the Case Window. It was bugging me a lot... but I knew Computer Source ain't giving me a replacement for something so little (to them) also because they imported only 2 units of this Case. So instead I contacted Corsair RMA dept. directly ... they asked me to send some pics, which I did and today they sent me a notification saying my RMA request has been accepted and they are shipping me a new replacement within 1-2 days.
I have been ordering stuff off eBay for many years now, so there won't be any issue with delivery I am hoping, also they are paying for the shipping.
Just wanted to share my experience.