Bluedart Courier Services — I am complaining about the delivery.

I order a power bank through mi official site on 04/04/2018 which has to be delivered by the bluedart courier services. It's been more than 15 days i didn't receive the parcel and when i tried to track the status of my parcel it was mentioned that the consignee refused to accept the parcel. I tried to register the complaint the customer care no. But they refused to accept the fault and didn't resolve my issue. My tracking number is [protected]