Bragi Dash Pro stopped working

This is a follow-up to your previous request #378680 “Re: Request #377562: How wo…”

I cleaned them and the left one doesn’t wanna turn on. I’ve tried anything from resetting, brush cleaning, connecting it to the computer, and it’s unfortunately been without any luck
Please help on the return process.
I don’t know what the manufacture price is, but this is really unfortunate and manufacturers should up their product results, since receiving faulties like this for such a huge premium retail price should make quality be A++