letter to postmaster complaining about non delivery of parcel

I am not getting my letters properly. Kashiram, the postman of our area is very careless and irregular. He delivers the letter to the wrong persons. Generally, he delivers the latter very late. Thus I get letters either very late or never at all.

There is a small letter fixed at my gate. But he never puts the letters into it and gives them to the children. Many important letters are thus lost.

I have already requested you many a time but no action has been taken as yet.I, once again, request you to look into the matter.

Thanking you in anticipation

Yours faithfully

Sachin