How to write letter of complaint?

How to write letter of complaint?

 

Jack

 X,Y,Z                                                                   

 X,Y,Z                                                                   

 X,Y,Z                                                                  

 X,Y,Z                                                                   

Date                                                                    

Fernandace

T4Tutorials officer colony Pakistan

Dear Recipient,

Subject: Complaint about the subject

I would like to express my complaint to you through this letter. I recently used your product wall hanging and it gave me a lot of trouble. When its deliver its wooden part is damage. I demand immediate corrections at your respective places.

Thanks and best regards,

 Henry