How to write a business letter

 Letter to the manager of a firm about the defective goods sent to you.

The Manager

The a,b,c manufacturing company 

USA 

Dear sir,

             

  I received three washing machines 

manufactured by your factory on August 

7,2022 against my order dated August 2,2022.

I got your receipt NO,xxxxxxxxx 2022 dated 

August 2,2022 for 10000 US dollars the price of 

the washing machines. 

One out of three washing machines that I 

received is not works at all. A technician has 

examined it and found it defective. 

I'm returning this defective washing machine 

to you. I request you to pay me back its price 

that I have paid already, exchange it with a 

new working machine which is free of 

defects. 

Yours faithfully, 

X.Y.Z