Boat — Boat rockerzz 255 bluetooth headset

As One side of my wireless headphone Boat rockerzz 255f was not working properly, so i raised complaint for it and product was picked by Xpressbees. I was continuously tracking my AWB No. And after tracking my shipment now it shows whhandover. Now, its been around 20 days still no update from boat. Customer care not responding for calls.

Please help here i want my headphone as early as possible as its already been so many days.
Ticket no. Is 1121997 ...