How to write complaint letter in basic English

Here is an example of a letter of complaint.

(Vennila and Chandra are friends. Two years ago, Chandra’s
family moved to Madurai from Coimbatore.)

72, Anna Nagar,
Madurai.
Nov 1, 2003

DearVennila,
I have been inviting you to Madurai for the past two years.
I am sorry to say this, but, you have never paid a visit so far. I
am not at all satisfied with the way you keep postponing your
visit.
Hoping to meet you during the quarterly holidays.

Yours,
Chandra

 

To
Miss. Vennila,
65, R.S.Puram,
Coimbatore - 641 007