Pneumatic Speargun Service

Can anyone tell me where I can get a Mares Cyrano 1100 serviced in Perth? I know Scubanautics do it down in Rockingham and Dolphin Scuba in Welshpool, but am up in Ocean Reef an dRockingham is way to far, and Scubanautics can't fit it in within the timeframe.

Any suggestions would be appreciated.