Blue Dart Express — non receipt of document still status shows delivered

Ref no.[protected]
I was expecting my pran kit to be delivered by bluedart. Suddenly the document status is showing as delivered by bluedart on 24 th feb, the delivery person has not even called or nor i received any message of delivery.
On 28 th feb from pran is saying that document is undeliverabled.
The service of bluedart so pathetic, how can they just mark as delivered without even delivering the these important documents.
Pls check where is my documents