misleading warrantee !!

I had a heat tech geyser installed by plumbers in 2016, in 2021 November the 2nd my geyser burst and i contacted heat tech they sent plumbers and did the installation.

Now less than a year later my geyser is not heating up and when i call heat tech they tell me that the new geyser warrantee follows the old geysers warrantee dates, WHICH IS WRONG ITS A WHOLE NEW GEYSER !!!!! if they cant not have confidence to provide a new warrantee for the new geyser clearly then they do not have any confidence in their own products to even make it past a year!!!

Might i add that they never even notified me of the terms and conditions of the warrantee for this so called new replacement geyser!

When i asked to speak to a manager twice i was on hold for 10 minutes with no answer, this is additionally pathetic service from the call centers!!