DTDC Courier & Cargo — DTDC- irresponsible courier with worst customer service

I had booked their service from Thane to deliver an important document to NITIE in Powai. After calling up the institute they said they had not received any courier. When I called DTDC they said that address was incorrect and the courier could not be delivered and asked me to collect it from their Marol branch. When I asked them to return it to Thane from where I had booked, they said they will re attempt delivery. Afterwards I got an email from their customer service stating that NITIE is a restricted area and they asked me for contact details which I provided. Again no update and after a couple if email reminders the customer service person said that my complain has been escalated to their AOM. Meanwhile NITIE informed me that the courier company was lying as they receive hundreds of couriers daily and it is not a restricted area. After emailing dtdc sgain the customer service person again wrote that it is a restricted area snd again asked me for address and phone number which I had provided long back. I dont even want a refund, just return the package to me in Thane from where I had booked it. I will never again make the mistake of couriering anything with DTDC. They are liars and their customer service sucks