Same here. They even once sent me an extra part which I didn't order and when I called to ask what they wanted me to do with it, they told me to keep it.
basically one time I ordered a plane from them and it had two left wing panels I called them up and told them about it. two days later i have a new set of wings right and left. I didn't have to pay anything and they didn't care what I did with the pannels I had. they are a great buisness and I have been ordering from them starting from my first plane in jan of 99 I still to this day haven't had any other problems with them . in fact I ordered something from them two days ago and I will probably have it on mon. Anyway I'm sorry you had trouble with them .