Boat — One side just stopped working out of nowhere

One side of my boat Airdopes 138 Pro stopped charging after around 2 months. Pehle mujhe laga maybe small glitch hoga, but the charging case light was responding and still that earbud was fully dead. I thought it could be charger or cable issue so I tried another cable also, but same problem. Then I reached out to customer support since warranty was active. They reverted back and said replacement will be done after inspection. I had to wait for the exchange process. After around 10 days, full replacement of the earbuds was done. Ab I’m using this for more than 8 months and till now koi charging fault ya sound issue wapas nahi aaya.