First Flight Couriers — non delivery of my pan card and misbehave on reaching their office

Address:

Chandigarh, Punjab, 160047

I had applied for pan card which was to be delivered at my residence address as per norms. First flight courier did not deliver the same to my residence as required, rather sent a message for visit to their office or call at numbers given by them in the message. When i called those numbers, one number was not available and another one was no reply even after repeated calls. Then i had sent my brother to visit the office to inquire what is it all about?
I got to know that a letter from the income tax department has come. However, my bother asked him to hand over the letter to him or deliver the letter at home. The person started abusing my brother and said that he will return the letter to the sender only. My brother had to call the police to intervene. He got the letter only after the police came there and intervened in the matter.
Not only me, but there were many people whose letters were to be delivered at their respective addresses, but they had to come to the office for the same purpose under the same condition.

The person alleged that the house was found locked, however, my house is never locked, (Also, no note of locking of the house was mentioned on the face of the envelope). My phone number was visible from the envelop window, but i did not receive any call from them.

There is gross carelessness and non-compliance of their duties and misbehave by first flight office/staff deputed.
Serious action is sought against these people/company.