ADI
My telephone is dead for the last 3 weeks

My telephone is lying dead for the last 3 weeks. When I called exchange they gave me one number where I can register my complain. Each time I call that number it says your complain is already registered. No repair work. When I go to their exchange, they tell to meet AE but he is not there in office. They never pick the phone. I have lost all hope that they will repair it.