Hum, I wouldn't buy Axiums bindings if I were you. Yeah, it's cheap and light, but... it's (all) plastic, and not durable...
You bought Jp vs Ju, it's a beginner ski, so buy something like Look PX12/Salomon 912 at least. Personnaly, I'm not a big fan of Salomon (but it's good binding!), I would buy some PX12 Ti or P12 (if you don't want an high din).Plus you can't get 100mm wide brakes with those.