Bluedart Courier — So much delay in courier and inappropriate knowlege of CCA

One of my order no. [protected] which is to be delivered to Faridabad from Kolkatta, Its showing location Delhi Contingency Hu...but on calling bluedart customer care, they are saying they dont have any clue where exactly packet is currently located .. As per there portal courier is supposed to be deliverd on 3rd july and CCA saying that it will be delivered post or on Monday, Since they have not idea and Delivery date showing on there portal is a typo error.I dont know what kind of service bluedart is providing and thr CCA have no knowledge on product or have idea how to deal with the customer ...