India Post — regarding dispatch of material

Address:

Hyderabad, Andhra Pradesh

The Indian institute of chartered accountants has send the study material to me, the study material also received by the postal authority in my town medipally post office, hyderabad, pin code.500098.In transit to address is missed due to some reasons.So, the postal authority returned those material to their higher officials, when I will get my study material, Why the to address is missed, the people are neglected in this.