I have the same issue in the UK. What I suspect to be faulty cable on Vulcan ANC headphones which are 20 months old.
ASUS do not give customers the opportunity purchase spare cables.
This is the official response I was given:
Dear Patrick,
Thank you for contacting ASUS Customer Service.
My name is Carol and it is my pleasure to help you with your problem.
For the problem, I am afraid to tell you that local said retailer needs to support the customer. Local has provided a link you can read up on about sales of goods act 1979. Which explains the retailer is responsible by law to support the customer, as they hold a legal contract with them. The retailer should not be rejecting customers. Local will only support customers where their place of purchase is no longer trading.
http://www.which.co.uk/consumer-rights/regulation/sale-of-goods-act/
I bought them from Amazon, what the hell are Amazon going to be able to tell me?
Really, really shocking performance by ASUS. I've bought two motherboards, a graphics card and now these headphones from ASUS. Until now I've had no complaints. However, there's absolutely no way I will buy anything from them again if this is how they support their customers.
I have a BOSE bluetooth speaker that is phenomenal. I think that's where I'll get my next set of headphones.
Goodbye ASUS, and thanks not very much.