hum that basically damaged the core and thae base, the best thing they could do is reapiring teh base using a machine and placeshorter screws in it. The thing is you paid for not damaged skis and should geet some. unless you bought super cheap skis that were on sale so they could argue with that.
If you bought good skis, I highly suggest you to try having a pair of skis that didnt get fucked up like that. I worked in a shop and I know they can fix it so you wont be able to see the damage but the base will be tinnyer on some spots and it isnt too good for the skis to be in such a state.