Samsung — Samsung galaxy S3 is not working

Address:

Bangalore, Karnataka

I have bought my Samsung Galaxy S3 mobile on 25th March 2013. Mobile Serial No. [protected] Model No. GT-I9300RWDINU One month after my phone started restarting itself. After 3 months my phone's Back and Option buttons became invisible. I have visited Samsung service center. They told like this problem is not under warranty and they charged me 340 Rs. to fix this problem. After 6 months from purchase date, My phone began to show error as "No Sim Card Error". For this problem Samsung Care employee told that motherboard of this phone would be replaced and asked for 7000 Rs. I have not repaired my phone there and sent an E-Mail to concerned Samsung E-Mail Support. In reply they sent one Mail asking the Invoice and all other receipt for proof. I have Emailed them all the documents but I did not get any reply from Samsung side after that. Now my phone's screen is also giving problem like it is pure black now. My phone is pretty much under warranty even then i am forced to face all these from Samsung side. Please ask Samsung to repair my phone ASAP without any charge.