The best repairer ive found in perth is Josh from Oceanline in wangara and thats who i been using. u can sometimes even drop at his place in scarbs and pickup if wangara isnt near you. quick turn around and very reasonable prices, also great colour matches too!. heres his number- 0401588744
Dont use it until its fixed, probably has taken in water already if theres a hair line crack and its got a polstyrene core, which can suck in water like a sponge