Boult Audio — since last two days I am not able to turn on my ear phone

Since last two days i am not able to turn on my bluetooth earphone. I thought that it’s battery is drained then i put it in charging for 3 hours but then also it is not turned on.. and approx 5 days ago it was working smoothly.. and i had used it for 10 times and then also it happend.. and i had purchased it from myntra on 22nd oct 2018. So kindly please replace it as soon as possible.. because i trusted your product but i was wrong..