it is requested for the authorize letter to release the goods.
An authorization letter was requested in order to release the goods.
Therefore, we are unable to deliver the goods before 12:00 today.
It's hard to tell precisely what you want to say in the second sentence, so I just rewrote it as best as I could, hoping it means what you want it to mean. In any event, it does, or did, need to be changed.
Student or Learner