I've bought an NC 700 (silver) from France (Louvre) several months ago. I found the band of NC 700 is getting yellow and also got to know that many people have the same issue with the headphone. I have already contacted Korea service center and they required me to take the receipt with the gadget. However, I lost it. What should I do?
Thanks for getting in touch.
I'm sorry to hear you are having issues with your NC700 headphones.
For an issue like this, I'd encourage you to get in touch with local support to discuss service. If it was purchased in France, there should be a two-year warranty on the product.