[Resolved]  Elica — Elica chimney leaking oil

We have purchased new Elica filterless chimney couple of weeks back But now oil dripping from the motor and falling on the cooktop everytime we are using it. Customer service is not helping to fix it instead they are telling it's expected for such filterless chimneys. So my question is if it is expected then why company has not declared it in written on the product page . Why are they selling such faulty products in the market with this issue in their knowledge. I want a solution to this bcz we have invested a heavy amount for this purchase