It quite easy to fix or repair or correct almost every proplem or break possible with model airplanes. Really.

Repairing problems and breaks is a good skill to develop. If you got to keep the wing with the defective ailerons they would be excellent to practice on.

It is most assuredly true that noone who purchases an Almost Ready to Fly should receive one that is defective. But keep in mind that the quality of ARFs being sold today seems to have it's ups and downs. The fact that so many of us are willing to take really awful ARFs without complaint simply because the price was discounted seems to have encouraged the Chinese to try and ship lower and lower quality. It also looks like the present suppliers to US retailers have put some of those retailers out of business thanks to the quality of the products they shipped.

It really looks like it's a good time to know how to repair stuff for yourself, not just so you can fix the plane you break, but so you can keep from losing the money you spent buying cheaper stuff. And so you'll be in a better position when quality drops on the more expensive stuff.