Warranty doesn’t add up! Bull**** really

I have had my geyser installed with Kwikot in 2014. In 2016 my geyser burst, and it was still under warranty. However in 2020 when my geyser burst again, it’s not under warranty and to my knowledge my geyser is under a 5 year warranty, so I called them and the team had told me that the warranty from 2014 still carries over what nonsense is that if you getting replaced with a new product the warranty will just get carried over????? This is such a joke really I have wasted money buying a new geyser although I know my geyser is still under warranty! Worse possible company to deal with!