DTDC Courier & Cargo — I have not received my article after booking of 12 days

Address:

500005

I book my articles with corrier no. H15711053 from polancha khammam to hyderabad on 20/8/19 after booking of 12 days we have not received our atricle till now. We trying on your mobile no for enquiries but no response are given to us with not lifting the phone.
It not a good seevice for customers so pls delivered my article as soon as possible other wise l will take legal action against your dtdc courier sercice. My article is hold at malakpet branch from 20/8/19 to till now what is the reasons for holding my article without any information it is not good for your corrier.
Pls take necessary action for delivery of my article as soon as possible.

My corrier booking no. H15711053