[Resolved]  Nokia India — My phone is completely ruined

i am using lumia 520. i have already extended its warranty for one extra year. i purchased my device on 22nd oct 2013. the same year i went to nokia care in dec 2013 because my phone was asking for update. they took the phone from me and i got my phone in mid of jan 2014. all they did was replaced my original screen and got a new one. they also removed my original screen protector worth rs.350. the same day, i got a doubt since a white line at the top of screen became visible. but they ignored as a minor fault and ignored it. now last month in sep 2014, the screen became useless and reported at nokia care. they took my phone for 20 days nd they told me that the phones screen has been changed... but they did nothing. i went to a local phone seller. he immediately said me that the screen is faulty .. now i am unable to play anything... they also ruined the memory unit of my phone snd now i am unable to play music, , cant view pics...also the wifi of my phone has stopped working... plz plz plz help me... you can call me for further details... u can also see pics that pics cant be viewed, , , songs became of 20 mins and all memory has gone in others in storage sense..