Boat — boat earphones boat basshead 220

Boat — earphones boat basshead 220. I purchased my earphones on 4th july 2019 and it stopped working on 10 january 2020. One side of my earphones stopped working suddenly and dont know what to do with it.
As it is still in warrenty. Kindly consider this complain as soon as possible.
As seen mostly the complaints are not fullfilled. As i use it use it regularly it is making more issues for me. Firstly it was hard to search where to file the complain. So kindly consider as soon as possible