Dear Sir or Madam, 

I have seen your entry in the website
and would be grateful if you could send me further information about
your language courses. 

I would like to start my language course on:_______(date) and
stay until ______(date).
I have studied ________ (language) for ________ (years/months). 

I wonder if you could answer the following questions: 
What is the maximum number of students in your classes? 
Approximately how many students would there be at the
school when I plan to come? 
Approximately how many would be ......... (your nationality)? 
How many course levels do you have at that time? 
What kind of accommodation do you offer? 

My address  is:
Postcode, City:

Yours faithfully, 

(Your Name)