Replying to Wrong mounting, on shops part.

so i took my skis into a shop to get them remounted. after i talked to the guy there i looked around for a little and before i left went back to make sure they had the right mount location, he said he was good. went home and called again just to make sure, felt weird about the situation. after going back to the shop to pick up the skis a week later, they were mounted, twice already in the wrong spot. i was told they read the sheet wrong and re-did them, and still being in the wrong spot, so then they went and remounted them in the right spot. that a total of 4 sets of holes. they say they are not responsible, but said to ski them and see how they feel. anyone who works at a shop, can you give me any advice on what you think they should do.