I had my buds for about a week and a half, and the same thing happened to me. The case itself charged up just fine, but it's like the right bud wasn't making good contact?? It's only happened once, but for some reason, I wasn't that surprised when I noticed it. These buds only fit into the case one way, so I'm not sure if it was really a contact issue or something else.
Seems Like quite a common problem over the community,
went to use my earbuds today and when I took my right earbud out to use, my phone would tell me that my right earbud is disconnected and my left was on and connected. I have tried looking for ways to reset the buds but that doesn't seem possible. And I cannot update them either as you need 2 connected.
I would be happy to look into your concerns.
Can you please send me a private message with the below information here at this link: http://bit.ly/2GH8URL