DTDC Courier & Cargo — I haven't received my courier yet, inspiratie of repeated complaints

Address:	Visakhapatnam, Andhra Pradesh, 530046
Website:	www.dtdc.in

I have to receive my courier from dtdc (Helmet), tracking no: z10335296
I haven't received yet, inspite of calling many days and times, whenever they pickup (Very rarely) they use to take complaint and they use to tell your query will be solved. Both hyderabad and visakhapatnam branch people told the same thing. Hyderabad branch guys told that, we have already dispatched to visakhapatnam and suggested to contact visakhapatnam branch.
After trying many days a lady received call from vizag branch, she told we haven't received yet from hyderabad. This what i was fed up with their service.