Boat — Service center denied replacement my product

I am using boat Rockerz 255 pro+ headphone from last 6 months. Two days ago suddenly while talking on a phone call the headfone turned off. Since then the headphones have been shutting down suddenly. Sometimes it doesn't turn on. One day while listening a song the headfone wire got hot and smoke came out and the headfone became physically damaged. But still both headfone sound working. I got a battery drain notification so I removed the headphone from my ear. And I saw that smoke. Otherwise I would have been physically harmed. When shown to a boat service center, they refused to give headphone replacement because of physical demage. And that physicaly Demange happened due to the heating of the wire. Maybe this is the first time. But it is very dangerous. I am sending the picture of headphone along with it.