ST Couriers — Undelivered letter

Hi, I had booked courier on 3 dec 2009 from chennai. The letter has to deliver to New Delhi. They said the courrier will reach within 24 to 48 hours. But still it is not delivered, Today is 8dec2009.
my booking AWB number : [protected]
They are cheaters !!!!.... They don't know value of service.
Also there Customer service is worst. They don't even pick the call...
I suggest not to use ST Courier service. They are really worst. If their services are worst for Metro cities then I believe they should close their shop.

Kindly, one should take proper action.