Write an application to the post master complaining about non-delivery of letters.
To, The Post Master, Post Office, Rawalpindi. Dear Sir, I am very sorry to state that most of the letters addressed to my name are not delivered to me. It seems that the post man of the locality is extremely careless, nay, criminally negligent. In the first instance, he does not keep time. Secondly, he mis-delivers the letters. The people have already lodged complaints to this effect, Thirdly, he has no attitude of an employee. He sits with the riff-raff indulges in gossips and indecent jokes and, thereby, misplaces the letters. Should I hope that you will immediately hold an enquiry? Thanking you, Your truly, X .Y . Z