no backup service

I purchased a 2-plate SUNBEAM induction cooker. The unit generates way too much power, even on the lowest setting. I'm an electronics engineer and have proofed to them it generates about 8x the power it should on the low setting (400W vs 50W). This is despite the user manual claiming one can use the low setting for simmering, keep warm and even melt chocolate. I get no response. Typical of companies who import cheap products from China. I know for a fact, this is a simple firmware fault. They claim I'm the first person complaining about this. Maybe I'm the first person to try and keep a sauce warm???