Dubious Services

Not sure who is at fault here. I had a burst geyser in 2022, which was replaced under warranty through ABSA insurance, not even 3 years later and the replaced geyser is now bust. Heat Tech says that they cannot replace the geyser because it has already been replaced once. This brand Heat Tech seems to be a very unreliable brand, whereby their products doesn't even last 3 years. My advice, do not trust or use this brand Heat Tech. Or is the plumber Bububa Holdings Pty Ltd who was sent out to do the installation by ABSA insurance at fault for not doing the installation correctly. How can a geyser that's firstly under warranty burst and then the new one also bust within 3 years. This all sounds very dubious, between the Heat Tech, Buduba Holdings and ABSA insurance who would take accountability? seems like not one them can be trusted.