Electrolux — bad experience with repair

After buying a double door fridge in 2004 it has oflate stopped cooling, and after i lodged a complaint a company serviceman came and told me that the motor of the fan was defective and will have to be replaced.. which will cost me Rs.2350.00 and I duly paid them the amount. despite changing 3 motors ( does not look original) problem is persisting. It is of great dismay to face a problem with such a brand name as Electrolux. Any suggestions what course of action should I take?