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Flipkart Microsoft Lumia 950

I ordered lumia 950 frm flikart order no. Od206029620163912000 received today having heating issue even after updating the os and battery drained 80% in just 4 hours on moderate use, no games no movie not even surfed for half an hour continuously.
Raised a replacement request but what if the replaced one will have the same issue of heating...
How to get refund then... I\'m very stressed after having this issue in a product that cost me 30000 rupees???
Submitted by: kiran chowdhury