Boult Audio — Battery issues

I purchased this earplugs recently from amazon n couldn't return it due to covid issues. I tried calling customer care but no response my plugs don't work as they r detective most of the tyms its left plug doesn't work at all either there r connection issues or either it doesn't get connected to my phone n most important of all they work only for half hour accurate half hour not more than that as i can't return my plugs back to amazon i need to get it replaced from boult as soon as possible. Kindly pls look into this matter i won't let that happen that d product goes out of warranty n there is no response yet as d customer service is tooo tooo bad no response beein trying since a month to replace my plugs pls pls replace my plugs there r too many issues n it's a recently bought product in march 2020