DTDC — Courier sent on 22nd Jan hasnt reached the destication

Address:

Mumbai City, Maharashtra

Hi, My brother sent a courier from Nashik to Powai through DTDC(consignement no P[protected] on 22nd . According to rep in DTDC it reverted twice due to unavailability of receiver. However, I never received "Sorry to have you missed " message at the door step both the times. Every time I followed up, they mentioned consignment to be at various places like Ghatkopar, Pune, Cochin etc . If it was to be sent back it should have gone to my brothers address in Nashik. Its been more than 16 days since I am trying to track my courier which had important documents in it. I have written to there helpdesks in pune mumbai ghatkopar etc and the reponse is very lousy. Have never seen such a worst communication system so far. Please help!