First Flight Couriers — missing of mobile

Address:

Balrampur, Uttar Pradesh, 271201

I have send a courier via first flight courier, balrampur, u. P. On[protected], which tracking id number is j991p0296371. Its contained a blackberry passport mobile worth rs. 14, 999.00 on chennai address of the mobile seller.
The courier could not be delivered due to some reasons and its returned (Rto) to balrampur on 15/[protected]. On[protected], i have reached to receive the packet on their premises. When i have opened the packet in front of the representative of the courier agency, its found empty (The mobile and charger was missing). The weight of the packet on sending time was 600 gms., which is displaying on the receipt of 06.9.2017, and the weight of the packet is approximate 450 gms on receiving date i. E. 16.9.2017.

At once i give them writtern complaint about this. After this they have intimate all about the case to their bosses on the same day by phone and e-mail also. After this i have also send mail to on their head offices in lucknow and mumbai with enclosing the copy of above complaint.

Till date i am also calling them on daily basis to sort out the mistake and take appropriate action to pay my loss but there is no result till date. I had also send the registered complaint and emails to them for quick action in my case. There is no response till date.