Pathetic service

Bought an inverter Dec 2021. First of all the salesman couldn't tell me how it works and what battery to buy. They told me I have a 12 months guarantee. After 2 months the inverter broke. I took it in and they send it to be repaired. Gert, the repair man said the inverters are "China ****!" Gert was also rude, whenever you get a hold of him, he throws the phone down without talking to you. When I received it back, they gave me a very old one, full of scratches. After 4 months the inverter broke again. When I took it back, they said the guarantee is only 6 months now and they are not going to repair it. They also didn't want to give my broken inverter back to me. They also removed all those inverters in their shop. To many come backs, they said. All I can say: rather go to builders warehouse and don't trust anything Norkem Hardware tells you. Pathetic service!!!!!!!!!!!!!!!!