Nemtek Energizers warranty Issues and sub par products

Bought a Nemtek Wizord 4 energizer through a Supplier (regal security) April 2024. Got Alarm notification January for the energizer. When taken to Nemtek they say the Energizer is out of warranty and that the warranty starts when they sell it to supplier. Then they also claim there was a power surge which caused the board to be fried and that is not covered - this despite the energizer being connected via very reliable inverter with no direct power from eskom. Upon hearing that they say it must have been lighting - which is also not possible upon reviewing my security cameras for the time in question. There seems to be no recourse with these devices and it is always a 'technical fault' with a new energizer needed despite the current one being relatively new. Wish there was an ombud for these things to review so we as consumers don't have to take them at their word and can have it independently reviewed. The nemtek manual also claims : " The mains and high voltage outputs are protected against lightning and power surges. It also protects the unit against abnormally high potential differences between the high voltage and mains ground." Honestly disappointed by this really bad client experience