[Resolved]  Speed Post India — Speed post acknowledgement not received

I am not able to track my speed post dated 20th august...I sent it from Vizianagaram (Andhra Pradesh) Post office addressed to BHEL Ranipet.The number is EN[protected]IN. They told me that it would reach there in 3 days.But still i am not able to track it online only for two days and no further information was updated
The last date for the post to reach BHEL is 24th august and i will be at loss now...What should I do?