ATM Pin From HDFC Bank Bank — Not informing client and returning it

sir
HDFC bank had sent a courier through overnite express courier which contained ATM pin on 26/02/2009 with airway bill No;[protected] which to be delivered at Jolly Grany, Rishikesh. the same courier was received by rishikesh branch of ovenite on 27/02/2009 and returned it back on 28/02/2009 without informing me or the bank. The courier cited out of delivery area as the reason for not despatching the letter to me.
kindly look into the matter.
with regards
ashok kumar srivastava
[protected]