Sabai - I'm not positive your negative feedback will ever be posted. I have similar experience once, gave the seller a well deserved negative feedback (for the first time in 8 years !) but he instantly disputed it.
AudiogoN took the sellers side (even though I supplied them with a detailed explanation and images), claiming that over 3 weeks has passed since the seller had shipped the unit he had no control over what was happening with the unit in that time. They did not even want to listen when I told them that I'm from Poland (which makes the shipping take longer) and showed them the paper with the date unit was delivered to me.
AudiogoN took the sellers side (even though I supplied them with a detailed explanation and images), claiming that over 3 weeks has passed since the seller had shipped the unit he had no control over what was happening with the unit in that time. They did not even want to listen when I told them that I'm from Poland (which makes the shipping take longer) and showed them the paper with the date unit was delivered to me.