Blue Dart Express — staff not delivering since 11 days and demanding money and management is not responding despite multiple complaints

Address:

Patna, Bihar, 800026

Your staff called me on 8th august for delivering my parcel which has my provisional degree. I told him that the parcel has my degree and requested him to deliver it carefully and correctly.
Its been 11 days and i still have not received the package. Your staff does not pick up phone and had the courage to ask me to collect from main office if i was in such a hurry. Is 11 days not enough for delivering a package.
He's been lying that he visited the house and no one was there. My younger brother is at home 24*7.
In the last call, he flatly demanded that if i want an express delivery i should pay him for 'chai-naasta'- asks open bribe.
Have complained this to bluedart management and they have not responded after dropping a generic mail of apology.

Your staff's number:[protected]
His name (From truecaller) : shankar