Boat — Warranty registration

Address:

Delhi

Bought boat bassheads 225 in ear headphones about 5 months back and now it stopped working its still in warranty period. I wish to claim the warranty but there is no response from the service request. Have registered my complaint more than 5 times it says registration code will be sent to you by email but its all a hoax also everytime i try to call them it says all lines are busy there is no reply on email from past week.
Need help!!!