Trackon Couriers — Misplaced my parcel. Very irresponsible service and not responding

Address:

Hyderabad, Andhra Pradesh

20 days back I sent parcel to Surat. Docket no- Tracking no[protected]. But still not reached the destination. When asked about parcel I was informed that it was seized in airport, now they are telling me that it is misplaced. Who is responsible for this misplacement. I want either my parcel back which contains my customers dress or I want the dress money of 1600/- the cost of dress. This is heights of irresponsibility and rudeness.