Years ago, Ertl had a 1-800-number where you could contact someone with your concerns, but that went away around the time Ertl became Racing Champions or RC2 or whatever the company that ran AMT into the ground was called. It's still on some of the reissue kit instruction sheets, but I've never called it and doubt it still works. I'm guessing with the modeling hobby the way it is, they can't afford to have a 'help desk' like they used to. 
 
Revell still has a number you can call, and John at Round 2 has answered every e-mail I've sent his way (granted, I've only sent two e-mails, but that's pretty refreshing after the cold-shoulder treatment RC2 gave its customers).