DTDC Courier & Cargo — didn't received my consignment

Address:

176001

Dear concern there was one of my courier which was booked in october 2018 and it's consignment number is z74868915 it was booked for kangra city in himachal pradesh. It's been 4 months now but i didn't received my courier mentioned above.
I confirmed from your dtdc office kangra branch but they are denied to provide me it's details by saying that we have no records for it as company destroy its all records within a month. It is highly disappointed and dissatisfaction from dtdc courier. I have found worst services ever from a courier company dtdc. It was my very important document and it's a huge loss for me if i didn't find that consignment. Kindly help me to get it asap. My contact detail [protected].