Boult Audio — bolt muse wireless earphone with mic not connecting with any of my devices

I purchased a bolt muse wireless earphone with mic in august from amazon. After that it worked properly only for one month since then it is not connecting to any of my devices. I already complaint earlier but get no response till now. Please resolve it as soon as possible. Somewhere i feel that i wasted my money in this. Even local earphones work properly for atleast 2-3 months.