Replying to Marker Problems

My brother just bought a new pair of Icelantic Nomads, and mounted some Marker Free Skis on em. The second day using them, the toepiece broke, then, the shop remounted them with Marker Squires for free. The third day on them, he overshot a jump a bit and landed a bit backseat, and both toepieces broke in half, I guess. He's 6'5 and about 175 pounds, do you think it's because of his size or just defects? The shop said that they would refund another pair of bindings, but that would mean the third mount on a brand new pair of Icelantics, do you think Marker would do anything about it?