Xiaomi India — Camera not working

Address:

Bangalore, Karnataka, 560067

Hello,
my mobile MI REDMI 2 PRIME 4G(16GB, WHITE) X000EUEA41 having a problem of camera not working, some time it is not showing its icon(folder).
Previously i have launch a complaint to your service center and the have tried so remote functioning and as per there suggestion the mobile is needed to replace.
The mobile is under guaranty (warranty) as it is purchase on 29 September 2015.
following r the detail Invoice no DCVZXcfvr sep 29,
IMIE no [protected]