Consumer Redressal

Dear Sir,I had samsung note 3 moblie of worth rs.50000/-(approx)and is on warranty till 9/12/2014 , The above mobile lcd screen is repaired onces two month back and again problem start now ,I went to samsung service center for mobile check up they told me that lacd is again damaged and have to replace ,I ask them that i had not taken any backup,do you have to reset the mobile if so pls inform me earlier to take back up according to them they confirm it will not require as it is hardware problem nothing to be reset ,and if it is to be reset we will inform you ,As i am working and data is very precious for me and important also.When i visited again they completely deleted all my data and i had a argument also to that center ,I ask them to recover data as this is my self defense ,But they told me the same is not possible and accept their deeds/fault and regret for same ,But as the total loss is faced by me and make me depressed and defamation