Scammed by PSS!

We purchased an inverter from this establishment in August 2022, we started experiencing issues in November and the unit was booked in for assessment in December. The company than closed for the festive season, after trying for a few days once they reopened in Jan, we were told it's still in the workshop. We eventually received the unit back and the problem persisted so we've been trying to get some assistance. At first we were told that there wasn't any fault (after we clearly saw the report sheet stating that there was a fault) this is happening because of the load shedding. After alot of back and forth(the unit was booked in before we reached severe load shedding, it was once or twice a week), we are now told that this happens with the batteries and there's nothing they can do. We've contacted their head office , to be told the same thing. We even brought up that they lied that nothing was wrong yet there was a repair done(on a 4 month old unit) ... we were advised by management that it doesn't matter because it was repaired and these things happen, there's nothing they can do. After spending more than 10k on a unit that was meant to help us during load shedding... supporting a company that supposed to be so good... we now need to spend another few thousands as their batteries on the units they sell to the public, can't hold the load of load shedding 4 hours a week. It's absolutely disgusting, that companies make so much money on lies, scams and just pure greed. I will never recommend this company, their units are below average and their customer service skills are even lower!