DTDC Courier & Cargo — rakhi not delivered to the concerned party

To whomsoever it is concerned
I have delivered the consignment on 1st august, 2017 which contained 3 rakhis. The consignment no is z32699754 which was to be dispatched from lucknow to delhi.
The tracking details as well as through telephone confirmation on the given no:[protected] it is made clear that the package is successfully delivered to the concerned person but actually the concerned party has not received any courier.
This is sheer case of gross negligence on part of the courier agency that will not be tolerated. I want an immediate action on the said issue and the refund of my courier charges because o[censored]nsuccessful delivery. The delivery boy has not even made any attempt to call on the give contact no provided over the packet.in lieu of finding money inside the packet since rakhi was being send the courier boy must have opened it and then not able to find any such thing didn't made any further efforts. Please provide with me appropriate action so that no further action is taken.