Momentum True Wireless 3 Left earbud not turning on.

Hi, loved the momentum true wireless 3 but they've been giving me a lot of issues under the few months I've had them. Mostly charging issues, this usually went away after doing factory resets or cleaning the charging case. However this new issue is utterly bizarre.

​

My left earbud wasn't charging properly (stuck at 10%), so I did the usual, clean the case, clean the earbud, replace the earbud tips, factory reset, but nothing helped. Furthermore, it has gone off completely, like the LED point isn't even blinking or doing anything even if I press to turn it on. When I place it on the charging case, it blinks orange, which tells me it's charging it, but when I pull it back out again it doesn't do anything. Again, it doesn't even have the blinking led it usually does, as if it had no power at all. But the case indicates it's charging it by the blinking orange light? I'm not sure what could be the issue here.

​

The right earbud works fine, and it's charged by the case (proving the case is working), but no luck on the left earbud. Also, after factory reseting the earbuds, both by the app and the case, I'm now unable to pair them to any device, probably because the left earbud isn't even turning on.

​

(And yes, I'm using the Senheiser cable supplied with the box) Any advice on what could be the issue? Replacing these earbuds isn't cheap as you probably know lol.

​

Thanks for any help!

​

​