Gonoise.com — refund of gonoise colorfit watch

I have bought gonoise colorfit pro watch and i am not happy with charger + quality of product. I have been contacting customer care to provide me refund but till now no success with it. The charger is not user friendly and even watch is not upto quality. Kindly review my request and assist in getting refund. The customer care response is always about sending product and now they asking me to send in courier, who will bare this cost?