Senseable geyser useless

I have been staying in my house since 2014 and never had a problem with my geyser. Problems started after installed the senseable geyser system. In late Nov 2022 there was a water cut to the whole community , thereafter my geyser overheated and the element was damaged.(no automatic cutoff etc on the so called intelligent device). I paid R500 for replacement by their appointed plumber. Around 29th Dec 2022 early morning there was a thunderbolt in the morning ,next thing am getting a geyser element 'touch' message and tge geyser automatically stops working. Since then I have been moved from plumber to electrician with minutes and minutes of phone calls but still no warm water. I have been told I would have to wait for Tuesday the 3rd for electrician. I regret having installed such a useless device, getting no warm water when you need it the most and everybody is home. I should have just stuck to my old geyser system which served me reliably.