Document not delivered by First Flight

First flight courier misplaced/not delvered. The tracking id U991B0226691 shows its arrived in Hyderabad. Its been more than a week I have no clue whre is it. I have been running through all places near the hub and all other dispatch areas.Made numerous phone calls but of no use. The first flight courier is really insensitive about the work it is doing.this really needs to stop.I need my courier asap.

Rashika jalan
Whitefields, Hyderabad 500084, Telangana
Email: rxxxxxxxxxx9@gmail.com