www.raidentech.com aka
www.nitroplanes.com
The best thing to do in this situation is to immediately return the imcomplete kit and ask for a replacement or refund. Always pay by credit card!
Raidentech/Nitroplanes can take forever to fix a problem, and then only if you are constantly (but politely) badgering the right people.
It's not worth the grief, wait and pain to do this though.
Request an RMA and ship the kit/arf back to them.
If they tell you that they will get you the part, refuse, you may NEVER see it or see it many months later (ask me how I know!).
If they fail to quickly send you a replacement kit/arf just call up the credit card company and tell them that you did not receive the replacement merchandise in a timely manner.
Raidentech/Nitroplanes will either get you the replacement ASAP or you'll get your money back.
That said, after having one such problem, and having learned what to do, I've purchased a couple of other planes from them w/o incident and I know know to check the plane upon arrival and make any claims the same day.