DTDC Courier — 15 days since courier was placed. no details yet.

I placed a courier on 23january, 2019. Today is 7th february, 2019. 15 days since i placed the courier but it has not reached since. I am calling every contact number of dtdc but they are not responding. I also wrote two e-mail but even they went unanswered. Ad it is a very important document. My shipment is from delhi to kinanur himachal pradesh.
The company has deceived me:
1. Even after 15 days my courier is stuck in shimla.
2. The destination is kinnaur, himachal pradesh but on the tracking page it is displaying mandi, himachal pradesh.
An urgent resolution is desired.

My consignment number is
(Z[protected]