boAt Lifestyle — Regarding warranty claim issue

Address:	no.40,perumal koil street,vellodai,, Ponneri 601204.
Website:	support.boat-lifestyle.com

I had purchased a boat headphones through boat lifestyle website but I couldn't find my bill in that website. Now, i have been facing one side hearing problem in headphones, I m not able to claim warranty without invoice. I asked for my invoice but they have not been responding to my mails. I have my invoice in hand but they are not accepting that.please resolve my problem.