India Post — my courier still not received within prescribed date or time

Address:

Mumbai City, Maharashtra, 400087

The receiver still not received the courier with in prescribed date and the people at post office told lie to me that it will take 7 to 8 days but it had taken more then 28 days and still not delivered to the receiver the people at the post office niti are also not good they don't behave like humans they are so rude an egoistic i didn't satisfied with their service it has given me a lot of trouble because the post which i send it to saudi arabia it contains legal documents which is compulsory to reach there in the prescribed time but it didn't reach and had taken so much time so much bad service of india post this all happened due to that post office person who are giving their service there they don't share each and every detail with the consumers