Replying to Boots too worn out?

Just brought my new Line blends and rossi axial2 140 bindings in to my local ski shop to get them mounted up. I've been stoked all week to get them back. Unfortunately, the shop just called me and told me that the toe pieces on my boots are so worn out that they won't work. They straight up told me that I need new boots. The boots are Lange Blaster Pro's and I bought them only a couple years ago from that same shop. They cost me about $400 bucks. Anyone ever have this happen to them? What could cause boots to wear so easily and should I get a second opinion? I'm away at college so I can't see them myself.