damn that sucks, if you cant find a place to fix it for you and LINE wont exchange you would either have to buy a new ski or ghetto rig it. the JB weld was a good idea, or there is a gorilla glue that is crazy strong. i would get some of that, some clamps/vice grips and fill the gap with the glue/weld and clap it shut overnight. just make sure you dont get any on the bottom of your skis, if some comes out of the crack in the bottom there than take a credit card or some thin sharp edge and immediately scrape it off and clean the area.
ghetto as fuck, but it might work. JB weld is some crazy strong shit.