Xiaomi India — redmi 3s touchpad not working

I have purchase redmi3s (Gold, 16gb) vide imei [protected], serial no.[protected], order id-od[protected]. Order dt.07.12.2016, invoice dt.08.12.2016, through flipkart, from sane retail pvt ltd and
Now from dt.08.11.2017 my screen touch pad not working, and mi service center at kothari milestone mall, malad (W) refuse to change touchpad, 2885756