I feel your pain, but don't give up on it. I've been there twice since I bought it in October, and I'm still getting my confidence back, (which is slow going this time, due to my own not getting out to fly as often as I'd like) but if you look around this forum, there is a ton of lights at the end of most people's tunnels after similar stories of fly- aways, and losses of control.
I'm not totally comfortable yet myself, but there are many that came back from bigger problems than I've had and are flying very regularly on a daily basis. We have hope, and Yuneec has been very good to 99% of us. I've read other forums where people haven't been so lucky with the company backing we have with Yuneec. Try to talk to Andrew when you call them. Not saying others aren't as good. He's the only one I've dealt with there so far and he is great...other than 2 emails where he dropped the ball on getting back to me, but as CC Rider said, we are all human and we do error from time to time. I'm sure my wife would gladly get on here and tell you about all mine, but that's for the "Yuneec Husbands" forum, not here.
Anyways, good luck, and I'm sure they will take care of you.