EP-T21 case not charging and earphones not working

Hi, I have a 5 month old pair of white EP-T21 Wireless earphones, they’ve been a bit temperamental recently, but the box has now completely stopped charging, no lights are coming on, and the earphones themselves are totally dead too.
Does anyone have any suggestions of how to get them going again? Or if I can get a replacement pair sent? They were bought from amazon rather than direct so not sure how that would work.

Hi @Megsteward,

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