Replying to First day on new pair of skis #2

Last week I got my brand new Line Chronics. On the first day skiing on them, on the 4th run the other ski snapped on a normal jump. Aren't these skis supposed to hold up in park? I don't think it's normal for park ski to snap after 20 mins of skiing. I have tried to contact the company from which I bought the skis and they haven't replied anything. I have also sent Line Skis message without getting any answer.
 [URL=http://imageshack.com/i/15wy4zj][/URL] [URL=http://imageshack.com/i/g9n1v5j][/URL]
What should I do?