First Flight Couriers — Deliberate delay in delivering urgent consignment

Address:

Tinsukia, Assam, 786126

My consignment was booked on March 16th and it was from Delhi to Tinsukia, Assam. This is very urgent for me and I am not able to work because of the inconvenience caused by First Flight.
When I contacted Guwahati customer care, the executive told me that your consignment would come by flight. Now my question is from Delhi to Guwahati it takes 2:30 hrs in flight and even if it is coming by Train it takes 28-32 hrs to reach Guwahati. I was even determined to collect it from Guwahati as it is so crucial for me but till now it has not reached Guwahati, why??
If I call Guwahati, they say you call Delhi and if I call Delhi they say you contact Guwahati as it has been dispatched from here.
Such a bitter experience I have had with First Flight I would never ever recommend First Flight to anyone in future.

My consignment number is D991B6099151

Regards,
Diganta