Left ear bud lower volume than right, Faulty T10

To whom it may concern

I’ve been having problems with the left ear bud of my T10 wireless headphones. At first it happened once in a while and fixed itself so I thought nothing of it. Now the volume on the left ear bud is lower (a lot) than the right l. I’ve checked online and tried all trouble shooting with no joy. I do like the product please help. I would like to add this is my second attempt at contacting you, hopefully this time i get a reply.