Well, I talked to Yuneec - and I know absolutely nothing more than I know now.
It was remarkable how little the guy knew. Here's a bit of how the conversation went. Imagine his comments in the most deadpanned, apathetic tone possible:
Me: KAV has gone completely off the radar. They aren't answering any calls.
Him: Yeah, I'd heard that from a few people. You might try emails.
Me: We've been trying the emails and gotten no response.
Him: Ah.
Me: So are they still in business or what?
Him: Well, I mean, yeah. As far as we know it's business as usual.
Me: Can you tell me the status of my drone?
Him: Well, you can try using the order tracker on the website.
Me: Yuneec's website?
Him: No, KAV's website.
Me: We've already tried that and they don't respond to that either.
Him: Ah.
Me: My repair has been going on for months.
Him: Yeah, the repairs are taking a long time because they don't have parts, and the replacements are taking a long time because we're out of inventory.
Me: So do you know when you'll get more inventory?
Him: No . . . no idea.
Me: People are really getting tired of the delays. I ordered the H+ in March. It's almost November and I haven't been able to fly it yet.
Him: Yeah, I can understand how that would be frustrating.
Me: The last I talked to them they had repaired it once. That failed. I sent it back and they repaired it again. That failed their testing. So they said they contacted Yuneec and were awaiting a replacement drone.
Him: Yeah, so if that's they said, they're just waiting on inventory.
Me: But you can't tell me when more drones will arrive?
Him: No. You can try calling back next week to see if we know any more.
Utterly, completely frustrating.