Hafele — Refrigerator

I had purchased a fafele fridge JRN750 two years back. Within 6 months I started having problems. The water dispenser stopped working and there was no cooling. The technician came and changed some part and charged me 10000. Within a month itself the same problem occurred again. The technicians kept on trying but still the problem persisted. I asked for replacement. But the did not agree. They changed almost all the parts of the fridge for which they did not charge me. The dispenser however did not work. After a couple of months again I started having the same problem. I want a replacement as it is such an expensive fridge but they r refusing