DTDC — Always returns my order to the seller.. Very bad courier service

Address:

New Delhi, Delhi

I always order through ebay.. this is 5th time that my order has been shipped by dtdc. My 2 AWB no's are :- Z41399746 and Z41020361 .. Out of 4 times, only one time i had got my order.. otherwise they return the order to the seller back saying that office/ door is closed..Neither they call me on my phone number given in the parcel. I am really very irritated by this service.. This time i want my order.. This time also one order shows that the office/door is closed. Kindly help me and get my order on time...