Write a letter of complaint

129 Nguyen Dinh Chieu Street, Soc Trang - Viet Nam
The Director
English for Today Centre
731 Van Xuan Street , Ha Noi - Viet Nam
24th October, 2020
Dear Sir,
I am writing to complain about the poor quality of the service at your centre. Everything seems to be worse than what you say in the advertisement.
First, you say all the teachers at the centre are only the native, but in fact not all of them are native teachers, and even some are not professional teachers.
Second, most of the classes are more than 20 students. And in the advertisement, you say books and tape cassettes are free, but I had to pay for them, and most of the books are photocopied, not primed. And the thing that annoys us so much is most of the rooms are not air-conditioned.
Finally, the class time is not the same as that in the advertisement: classes begin later than 5:30 and almost every class finishes earlier than 8:30
To resolve the problem, I require you to give me the refund. Enclosed is a copy of the receipt
I look forward to hearing from you and to getting a quick resolution of problem. Please contact me at the above address or by phone at 0123456789.
Yours faithfully.
Ly Dung