You maybe correct. You see I got my Q back before the last holiday season, and the few questions, and experiences that I had with Yuneecs CS were excellent and handled at time of call, although I've never had to send anything back. I would say that when I joined the forum there were a little over 200 members or so, however after this past holiday season it seems that everybody got a Q500+ for christmas; evident by the size the forum has grown just in the past few months. So I'm sure the CS dept. is probably slammed with trying to satisfy all of it's customers. I know that there is someone from Yuneec that monitors this sight so maybe keep voicing your frustrations about CS and it might help speed up the process. I hope everything works out for you.
with increased sales and media coverage, the customer support aspect needs to follow it otherwise they will be tarred with the DJI brush (although DJI are getting better), but we need to be mindful that these growing companies get bombarded with mail about all kinds of issues every day and the more popular they get the more they will struggle unless they make a corporate decision to really get to grips with the customer service