Heat Tech Geysers poor delivery on warranty

For one to rate service, you actually have to receive service of some sort? I have been waiting for 24 hours for someone from Heat Tech to attend to my geyser that is still under warranty. I have already not had warm water in my household since Saturday but it seems that Heat Tech is not worried over their reputation when it comes to honoring their warranty's. I have been trying to contact you directly for the last 2 hours but no-one is answering the phones and when some-one finally decides to answer they "transfer" you only to cut the call. PATHETIC!!!