In your case, I doubt that will affect the functionality of the cage in any way, but I don't actually own one of these either, just going by what I see in the pics. And yes, contact AP, I'm sure they will hook you up.
Now as someone who works in the shipping industry, here's how this should be handled. First, always inspect the package while the driver is still there whenever possible. If you see damage, tell the driver you want to inspect the contents, and that they need to wait in case you need to file a damage claim. Be quick about it, these guys really are busy. Using this case as an example, you'd want a pic of the whole box showing the damaged area, one close up of the damage, and as many as you can get of the unboxing, focusing on the damaged area. And since I know a lot of these get dropped off blind when no one is home, you instead need to call the shipper, either same day or early the next, and get the ball rolling with them. In this case I doubt the shipper will even bother with a claim, more likely they will just send you a new panel and take the loss. Looks like the package was slid into something pretty hard in this case.
Reply With Quote