First off, are you sure it is supposed to be completely covered, and not covered but needing the final trim? If you are I'd send it back. I always use my warranty options unless it's something minor like a little touching up on the covering, or misplaced hinges. I look at it like this: I bought it to build and fly. Not to fix, build, and find out something else is wrong. My experience is that if there is something major wrong with one part, then it is usually not the only thing. I wouldn't worry about the glue though. You could just get some foam safe CyA, and it would be just as strong if not stronger.