PowerBeats Pro - Left Earbud won't Charge

I've had these earbuds for less than 6 months. The left earbud will not charge when in the charging box. I have tried resetting several times and I have confirmed that I have the most up to date version of iOS and the most up to date software version for PowerBeats Pro (6B27). This is very frustrating. These are my most favorite pair of earbuds I have ever had and now they are just useless. Can you please let me know what the problem is? I have researched and this seems to be a very common problem with PowerBeats Pro customers.