New India Assurance — phone insurance not settled

Myself claim no [protected], got my phone damaged on 24 april 2017. I have submitted all documents. I was assured to be paid compensation value of my phone on 18 july 2017. But i didn't receive anything. On 17 dec 2017, i submitted my grievance and my grievance no is[protected].
On first jan 2018, i got a call to submit invoice and other documents, which i had already sent. Even though, i sent all documents.

Till today no action had been taken place.
Kindly do needful.
Regards
Vinay tomar