nope never had to have repair work done on my 3 Jetbeams and hope I never do. This is not the first time I have read that Jetbeams CS and warranty repair basically does not exist. On the up side my 3 Jetbeams are built like tanks I swear the aluminum alone must be an eighth of an inch thick...
Hoping this doesnt come off as bigoted somehow but if you have a translator that will translate your email to whatever address they use to Chinese you may be more likely to get a response.