DTDC Courier & Cargo — my bills send via dtdc is misplaced and till not send

Dtdc the most irresponsible courier center, i have send original bills of rs12890 whose consignment no. - k19927149 on 2nd aug 2019 it should reach by 6th aug as per dtdc employee but they couldn't deliver still today i. E 31st august 2019. Now when i calling them they are saying it's misplaced the concerned no.[protected], another guy name sandeep of kundli facility told will let me know but didn't pick my call even 20 times i tried his no. Is [protected]. I need my bills by 48 hours anyhow.