Boat — Boat Rockerz 550

I purchased boat headphones Rockerz 550 (order ID: 223641) on 11th March 2021 from boat website as guest user. The headphones mic is not working since the time I received this product and contacted boat customer service requesting to replace the product. But, no proper response from the team. I have mailed the issue to boat service ([protected]@imaginemarketingindia.com) nearly 5times and haven't heard back anything.
Requesting to take action as early as possible and get the product replaced.