Wharfedale Subwoofer problem

Hello,

this is jagdish from melbourne, Actually i have bought this wharfadale 5.1 music system in March, 07 but since beginning i am facing problem with the sub woofer. Previously it was some time working and some time not. Actually power is there in subwoffer as green light is showing but no sound is coming. Before some time sound use to come and autometic it went off but now its totally sound less.

pls advice me what to do or provide me contact no. of repair center in Melbourne, Australia so that i can contact to them.

Regards,

jagdish Jha.