DTDC Courier & Cargo — Package has not been delivered or returned - Saying it can take years to get the package

Address:

Indirapuram , Ghaziabad Branch

Hi DTDC,
I have used your courier service to deliver one of my packages on 7th of April 2021 from the Indirapuram Ghaziabad branch. While delivering they deliberately changed the Pincode of the destination address without informing me and at the time of delivery, it was showing an incomplete/wrong address. When i asked them to at least return my package so that I can use another courier service to send my package, they said you will get the package in 2 days, then again extended the timeline for 4 days. I have visited the branch 8 times, now they are saying that they can not commit the delivery/return of my package. It can take weeks or months or year but they can not commit.
One of the seniors from the branch said that he will ask the courier to be delivered on his name, but now they are saying the policy has been changed and there are no timelines for delivery
I don't understand the nature of service and professionalism here. Now they are saying me to stop following it will be returned when they receive it and it can take any amount of time.
Now, it is really very frustrating for me neither the package has been delivered to the destination address nor it has been returned to me.

AWB No :- U02932143