False advertising on their Surge protection plugs

I have purchased an 720w/1440kva inverter trolley together with 2 surge protector plugs which Ellies claims to safeguard your devices against power surges. On the 27th of April 2023 we were busy watching TV while being loadshedded. The power came back on and about 5min later a loud pop came from the inverter upon inspection found that the fuse has blown, I replaced the fuse with the extra fuse in the fuse holder and as soon as I switched the power back on at the plug it popped again. On the 28th April I took the inverter in to Ellies Woodmead where the service itself was something to be desired for but was advised that the main pc board has most probably blown but would have to be sent in for assessment which could take up to 4-6 weeks. I contacted my insurance to enquire if the inverter falls within my home contents insurance luckily it did and I could submit a claim but as my insurance is not yet older than 3 months the insurance will only pay out 50% of the value and I have an additional 20% access of the value of the item I claim for with that my installment also goes up. I sent a mail to Ellies to enquire about their surge protection plug guarantee that it would protect your appliances against power surges as the insurance company had the item assessed and found the main pc board indeed did blow and the cause was due to a power surge. I am yet to receive some form of feedback regarding the query I logged with Ellies. I will never again in my life buy any Ellies product, Ellies should stick to what they know which is making extension cords and multiplugs and keep away from inverters and backup power instruments. Complete and utter pathetic service from Ellies. I will also contact the Consumer Goods and Service Ombudsman to take this matter further.