I suffered similar situation in the past, heads up for bringing this topic for discussion. There should be something like BBB (Better Business Bureau) in order to handle these things. Each Restaurant should be rated as per their performance, hospitality and food quality.
You should file a lawsuit against the General Manager for insulting you. We need to improve the image of Qatar and these pathetic Restaurants can not ruin it.
You are right all the posting in the favor of their Restaurant is from same persons. It should be treated as fraud. QL did a right thing by moving them from their web site. Great Job