I've had my earbuds for 18 months and the left earbud will no longer work. At first the charge was draining faster than in the right bud but now the left won't connect at all, and because of that the app won't update either. I've tried everything possible to correct this but nothing has worked. This is very frustrating because if my earbuds are shot after only 18 months of intermittent use then I'm not willing to buy them again. Any ideas on how to fix this issue?