Nokia hand set 3500c
Non repairing of hand set

I purchased tha above hand set in the month of may 08. The key s hand set was not working properly. I given my hnad set for repair to nokia service centre but it was not properly repaired. I agains given my hand set on 24-06 vide job sheet no 344434038/080624/138 . The set is under warantee. The same is not being returned . i am being given ever time a week times. I am totaly exhausted to run the service centre of nokia