DTDC Courier & Cargo — non delivery of courier

Address:

kanakapura Road, 560082

Consignment No.Z11173782 was sent from Solan, HP to Bangalore on 22.05.19.I am supposed to receive the parcel but till date I have not received the same, My number was mentioned on the packet but no one called me.I called their 4 branches and got to know that they have lost the parcel.After contacting the customer care ( Emails sent more than 5 times ) they are saying we have delivered the packet. When I asked about the delivery proof they shared the details as "NO NAME OF RECEIVER", "NO SIGNATURE OF RECEIVER", "NO CONTACT NUMBER OF RECEIVER". I am waiting for my parcel from 29th may but I have not received the same. They are not able to find the same. PLEASE HELP.